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Finding the Fourth Proportional to 574,444.80, 861,667.20 and 325,612.80

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Solution

The fourth proportional to 574,444.80, 861,667.20 and 325,612.80 is: 488,419.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,444.80 : 861,667.20 = 325,612.80 : x
  2. Step 2: Convert to fraction form
    574,444.80/861,667.20 = 325,612.80/x
  3. Step 3: Cross multiply
    574,444.80x = 861,667.20 × 325,612.80
  4. Step 4: Simplify right side
    574,444.80x = 280,569,869,660.16
  5. Step 5: Solve for x
    x = 280,569,869,660.16/574,444.80
  6. Step 6: Final answer
    x = 488,419.20

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Similar ratio
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1.5x scale

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.