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Finding the Fourth Proportional to 584,111.20, 876,166.80 and 140,879.20

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Solution

The fourth proportional to 584,111.20, 876,166.80 and 140,879.20 is: 211,318.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,111.20 : 876,166.80 = 140,879.20 : x
  2. Step 2: Convert to fraction form
    584,111.20/876,166.80 = 140,879.20/x
  3. Step 3: Cross multiply
    584,111.20x = 876,166.80 × 140,879.20
  4. Step 4: Simplify right side
    584,111.20x = 123,433,677,850.56
  5. Step 5: Solve for x
    x = 123,433,677,850.56/584,111.20
  6. Step 6: Final answer
    x = 211,318.80

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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.