Home / 1,243,061,425.68-1,715,424,935.40-686,144,577.84

Finding the Fourth Proportional to 1,243,061,425.68, 1,715,424,935.40 and 686,144,577.84

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Solution

The fourth proportional to 1,243,061,425.68, 1,715,424,935.40 and 686,144,577.84 is: 946,879,610.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,061,425.68 : 1,715,424,935.40 = 686,144,577.84 : x
  2. Step 2: Convert to fraction form
    1,243,061,425.68/1,715,424,935.40 = 686,144,577.84/x
  3. Step 3: Cross multiply
    1,243,061,425.68x = 1,715,424,935.40 × 686,144,577.84
  4. Step 4: Simplify right side
    1,243,061,425.68x = 1,177,029,518,116,242,432
  5. Step 5: Solve for x
    x = 1,177,029,518,116,242,432/1,243,061,425.68
  6. Step 6: Final answer
    x = 946,879,610.13

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Half scale
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Double scale
Find fourth proportional to 1,243,061,426.68, 1,715,424,936.78 and 686,144,578.84
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.