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Finding the Fourth Proportional to 453,356.46, 625,313.52 and 392,819.58

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Solution

The fourth proportional to 453,356.46, 625,313.52 and 392,819.58 is: 541,815.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,356.46 : 625,313.52 = 392,819.58 : x
  2. Step 2: Convert to fraction form
    453,356.46/625,313.52 = 392,819.58/x
  3. Step 3: Cross multiply
    453,356.46x = 625,313.52 × 392,819.58
  4. Step 4: Simplify right side
    453,356.46x = 245,635,394,294.72
  5. Step 5: Solve for x
    x = 245,635,394,294.72/453,356.46
  6. Step 6: Final answer
    x = 541,815.14

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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.