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Finding the Fourth Proportional to 584,221.20, 876,331.80 and 384,766.80

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Solution

The fourth proportional to 584,221.20, 876,331.80 and 384,766.80 is: 577,150.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,221.20 : 876,331.80 = 384,766.80 : x
  2. Step 2: Convert to fraction form
    584,221.20/876,331.80 = 384,766.80/x
  3. Step 3: Cross multiply
    584,221.20x = 876,331.80 × 384,766.80
  4. Step 4: Simplify right side
    584,221.20x = 337,183,382,424.24
  5. Step 5: Solve for x
    x = 337,183,382,424.24/584,221.20
  6. Step 6: Final answer
    x = 577,150.20

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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.