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Finding the Fourth Proportional to 486,655.64, 730,052.92 and 149,724.40

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Solution

The fourth proportional to 486,655.64, 730,052.92 and 149,724.40 is: 224,607.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,655.64 : 730,052.92 = 149,724.40 : x
  2. Step 2: Convert to fraction form
    486,655.64/730,052.92 = 149,724.40/x
  3. Step 3: Cross multiply
    486,655.64x = 730,052.92 × 149,724.40
  4. Step 4: Simplify right side
    486,655.64x = 109,306,735,415.25
  5. Step 5: Solve for x
    x = 109,306,735,415.25/486,655.64
  6. Step 6: Final answer
    x = 224,607.97

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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.