Home / 1,243,061,403.93-1,715,424,905.39-686,144,556.09

Finding the Fourth Proportional to 1,243,061,403.93, 1,715,424,905.39 and 686,144,556.09

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Solution

The fourth proportional to 1,243,061,403.93, 1,715,424,905.39 and 686,144,556.09 is: 946,879,580.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,061,403.93 : 1,715,424,905.39 = 686,144,556.09 : x
  2. Step 2: Convert to fraction form
    1,243,061,403.93/1,715,424,905.39 = 686,144,556.09/x
  3. Step 3: Cross multiply
    1,243,061,403.93x = 1,715,424,905.39 × 686,144,556.09
  4. Step 4: Simplify right side
    1,243,061,403.93x = 1,177,029,460,211,121,152
  5. Step 5: Solve for x
    x = 1,177,029,460,211,121,152/1,243,061,403.93
  6. Step 6: Final answer
    x = 946,879,580.12

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Double scale
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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.