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Finding the Fourth Proportional to 691,646.50, 954,472.17 and 373,694.50

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Solution

The fourth proportional to 691,646.50, 954,472.17 and 373,694.50 is: 515,698.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,646.50 : 954,472.17 = 373,694.50 : x
  2. Step 2: Convert to fraction form
    691,646.50/954,472.17 = 373,694.50/x
  3. Step 3: Cross multiply
    691,646.50x = 954,472.17 × 373,694.50
  4. Step 4: Simplify right side
    691,646.50x = 356,681,000,332.07
  5. Step 5: Solve for x
    x = 356,681,000,332.07/691,646.50
  6. Step 6: Final answer
    x = 515,698.41

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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.