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Finding the Fourth Proportional to 615,819.44, 922,024.92 and 315,652.88

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Solution

The fourth proportional to 615,819.44, 922,024.92 and 315,652.88 is: 472,605.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,819.44 : 922,024.92 = 315,652.88 : x
  2. Step 2: Convert to fraction form
    615,819.44/922,024.92 = 315,652.88/x
  3. Step 3: Cross multiply
    615,819.44x = 922,024.92 × 315,652.88
  4. Step 4: Simplify right side
    615,819.44x = 291,039,821,429.77
  5. Step 5: Solve for x
    x = 291,039,821,429.77/615,819.44
  6. Step 6: Final answer
    x = 472,605.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.