Home / 658,346.20-987,519.30-159,710.20

Finding the Fourth Proportional to 658,346.20, 987,519.30 and 159,710.20

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Solution

The fourth proportional to 658,346.20, 987,519.30 and 159,710.20 is: 239,565.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,346.20 : 987,519.30 = 159,710.20 : x
  2. Step 2: Convert to fraction form
    658,346.20/987,519.30 = 159,710.20/x
  3. Step 3: Cross multiply
    658,346.20x = 987,519.30 × 159,710.20
  4. Step 4: Simplify right side
    658,346.20x = 157,716,904,906.86
  5. Step 5: Solve for x
    x = 157,716,904,906.86/658,346.20
  6. Step 6: Final answer
    x = 239,565.30

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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.