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Finding the Fourth Proportional to 561,687.24, 842,530.92 and 187,710.24

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Solution

The fourth proportional to 561,687.24, 842,530.92 and 187,710.24 is: 281,565.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,687.24 : 842,530.92 = 187,710.24 : x
  2. Step 2: Convert to fraction form
    561,687.24/842,530.92 = 187,710.24/x
  3. Step 3: Cross multiply
    561,687.24x = 842,530.92 × 187,710.24
  4. Step 4: Simplify right side
    561,687.24x = 158,151,681,200.62
  5. Step 5: Solve for x
    x = 158,151,681,200.62/561,687.24
  6. Step 6: Final answer
    x = 281,565.38

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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.