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Finding the Fourth Proportional to 615,233.10, 922,849.65 and 547,581.90

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Solution

The fourth proportional to 615,233.10, 922,849.65 and 547,581.90 is: 821,372.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,233.10 : 922,849.65 = 547,581.90 : x
  2. Step 2: Convert to fraction form
    615,233.10/922,849.65 = 547,581.90/x
  3. Step 3: Cross multiply
    615,233.10x = 922,849.65 × 547,581.90
  4. Step 4: Simplify right side
    615,233.10x = 505,335,764,761.34
  5. Step 5: Solve for x
    x = 505,335,764,761.34/615,233.10
  6. Step 6: Final answer
    x = 821,372.85

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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.