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Finding the Fourth Proportional to 516,366.70, 712,663.05 and 371,651.02

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Solution

The fourth proportional to 516,366.70, 712,663.05 and 371,651.02 is: 512,933.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,366.70 : 712,663.05 = 371,651.02 : x
  2. Step 2: Convert to fraction form
    516,366.70/712,663.05 = 371,651.02/x
  3. Step 3: Cross multiply
    516,366.70x = 712,663.05 × 371,651.02
  4. Step 4: Simplify right side
    516,366.70x = 264,861,949,448.81
  5. Step 5: Solve for x
    x = 264,861,949,448.81/516,366.70
  6. Step 6: Final answer
    x = 512,933.83

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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.