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Finding the Fourth Proportional to 532,215.72, 734,439.42 and 317,244.96

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Solution

The fourth proportional to 532,215.72, 734,439.42 and 317,244.96 is: 437,787.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,215.72 : 734,439.42 = 317,244.96 : x
  2. Step 2: Convert to fraction form
    532,215.72/734,439.42 = 317,244.96/x
  3. Step 3: Cross multiply
    532,215.72x = 734,439.42 × 317,244.96
  4. Step 4: Simplify right side
    532,215.72x = 232,997,204,420.32
  5. Step 5: Solve for x
    x = 232,997,204,420.32/532,215.72
  6. Step 6: Final answer
    x = 437,787.15

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1.5x scale

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.