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Finding the Fourth Proportional to 372,792.10, 514,007.86 and 304,557.70

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Solution

The fourth proportional to 372,792.10, 514,007.86 and 304,557.70 is: 419,925.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,792.10 : 514,007.86 = 304,557.70 : x
  2. Step 2: Convert to fraction form
    372,792.10/514,007.86 = 304,557.70/x
  3. Step 3: Cross multiply
    372,792.10x = 514,007.86 × 304,557.70
  4. Step 4: Simplify right side
    372,792.10x = 156,545,051,623.52
  5. Step 5: Solve for x
    x = 156,545,051,623.52/372,792.10
  6. Step 6: Final answer
    x = 419,925.88

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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.