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Finding the Fourth Proportional to 561,678.38, 842,517.57 and 187,701.38

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Solution

The fourth proportional to 561,678.38, 842,517.57 and 187,701.38 is: 281,552.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,678.38 : 842,517.57 = 187,701.38 : x
  2. Step 2: Convert to fraction form
    561,678.38/842,517.57 = 187,701.38/x
  3. Step 3: Cross multiply
    561,678.38x = 842,517.57 × 187,701.38
  4. Step 4: Simplify right side
    561,678.38x = 158,141,710,563.25
  5. Step 5: Solve for x
    x = 158,141,710,563.25/561,678.38
  6. Step 6: Final answer
    x = 281,552.07

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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.