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Finding the Fourth Proportional to 584,065.80, 876,098.70 and 385,000.20

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Solution

The fourth proportional to 584,065.80, 876,098.70 and 385,000.20 is: 577,500.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,065.80 : 876,098.70 = 385,000.20 : x
  2. Step 2: Convert to fraction form
    584,065.80/876,098.70 = 385,000.20/x
  3. Step 3: Cross multiply
    584,065.80x = 876,098.70 × 385,000.20
  4. Step 4: Simplify right side
    584,065.80x = 337,298,174,719.74
  5. Step 5: Solve for x
    x = 337,298,174,719.74/584,065.80
  6. Step 6: Final answer
    x = 577,500.30

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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.