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Finding the Fourth Proportional to 453,151.72, 625,193.62 and 281,007.80

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Solution

The fourth proportional to 453,151.72, 625,193.62 and 281,007.80 is: 387,694.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,151.72 : 625,193.62 = 281,007.80 : x
  2. Step 2: Convert to fraction form
    453,151.72/625,193.62 = 281,007.80/x
  3. Step 3: Cross multiply
    453,151.72x = 625,193.62 × 281,007.80
  4. Step 4: Simplify right side
    453,151.72x = 175,684,283,730.24
  5. Step 5: Solve for x
    x = 175,684,283,730.24/453,151.72
  6. Step 6: Final answer
    x = 387,694.18

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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.