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Finding the Fourth Proportional to 591,451.80, 887,760.90 and 292,270.20

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Solution

The fourth proportional to 591,451.80, 887,760.90 and 292,270.20 is: 438,693.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,451.80 : 887,760.90 = 292,270.20 : x
  2. Step 2: Convert to fraction form
    591,451.80/887,760.90 = 292,270.20/x
  3. Step 3: Cross multiply
    591,451.80x = 887,760.90 × 292,270.20
  4. Step 4: Simplify right side
    591,451.80x = 259,466,055,795.18
  5. Step 5: Solve for x
    x = 259,466,055,795.18/591,451.80
  6. Step 6: Final answer
    x = 438,693.49

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Double scale
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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.