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Finding the Fourth Proportional to 849,631,411.70, 1,274,447,117.55 and 849,631,411.70

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Solution

The fourth proportional to 849,631,411.70, 1,274,447,117.55 and 849,631,411.70 is: 1,274,447,117.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,631,411.70 : 1,274,447,117.55 = 849,631,411.70 : x
  2. Step 2: Convert to fraction form
    849,631,411.70/1,274,447,117.55 = 849,631,411.70/x
  3. Step 3: Cross multiply
    849,631,411.70x = 1,274,447,117.55 × 849,631,411.70
  4. Step 4: Simplify right side
    849,631,411.70x = 1,082,810,303,621,002,368
  5. Step 5: Solve for x
    x = 1,082,810,303,621,002,368/849,631,411.70
  6. Step 6: Final answer
    x = 1,274,447,117.55

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.