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Finding the Fourth Proportional to 690,372,522.57, 952,714,044.71 and 372,832,737.92

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Solution

The fourth proportional to 690,372,522.57, 952,714,044.71 and 372,832,737.92 is: 514,509,158.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,372,522.57 : 952,714,044.71 = 372,832,737.92 : x
  2. Step 2: Convert to fraction form
    690,372,522.57/952,714,044.71 = 372,832,737.92/x
  3. Step 3: Cross multiply
    690,372,522.57x = 952,714,044.71 × 372,832,737.92
  4. Step 4: Simplify right side
    690,372,522.57x = 355,202,985,744,584,256
  5. Step 5: Solve for x
    x = 355,202,985,744,584,256/690,372,522.57
  6. Step 6: Final answer
    x = 514,509,158.65

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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.