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Finding the Fourth Proportional to 539,103.20, 808,654.80 and 165,077.60

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Solution

The fourth proportional to 539,103.20, 808,654.80 and 165,077.60 is: 247,616.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,103.20 : 808,654.80 = 165,077.60 : x
  2. Step 2: Convert to fraction form
    539,103.20/808,654.80 = 165,077.60/x
  3. Step 3: Cross multiply
    539,103.20x = 808,654.80 × 165,077.60
  4. Step 4: Simplify right side
    539,103.20x = 133,490,793,612.48
  5. Step 5: Solve for x
    x = 133,490,793,612.48/539,103.20
  6. Step 6: Final answer
    x = 247,616.40

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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.