Home / 584,560.20-876,840.30-385,105.80

Finding the Fourth Proportional to 584,560.20, 876,840.30 and 385,105.80

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Solution

The fourth proportional to 584,560.20, 876,840.30 and 385,105.80 is: 577,658.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,560.20 : 876,840.30 = 385,105.80 : x
  2. Step 2: Convert to fraction form
    584,560.20/876,840.30 = 385,105.80/x
  3. Step 3: Cross multiply
    584,560.20x = 876,840.30 × 385,105.80
  4. Step 4: Simplify right side
    584,560.20x = 337,676,285,203.74
  5. Step 5: Solve for x
    x = 337,676,285,203.74/584,560.20
  6. Step 6: Final answer
    x = 577,658.70

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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.