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Finding the Fourth Proportional to 587,321.20, 880,981.80 and 410,174.20

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Solution

The fourth proportional to 587,321.20, 880,981.80 and 410,174.20 is: 615,261.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,321.20 : 880,981.80 = 410,174.20 : x
  2. Step 2: Convert to fraction form
    587,321.20/880,981.80 = 410,174.20/x
  3. Step 3: Cross multiply
    587,321.20x = 880,981.80 × 410,174.20
  4. Step 4: Simplify right side
    587,321.20x = 361,356,005,029.56
  5. Step 5: Solve for x
    x = 361,356,005,029.56/587,321.20
  6. Step 6: Final answer
    x = 615,261.30

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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.