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Finding the Fourth Proportional to 561,677.25, 842,515.88 and 187,700.25

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Solution

The fourth proportional to 561,677.25, 842,515.88 and 187,700.25 is: 281,550.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,677.25 : 842,515.88 = 187,700.25 : x
  2. Step 2: Convert to fraction form
    561,677.25/842,515.88 = 187,700.25/x
  3. Step 3: Cross multiply
    561,677.25x = 842,515.88 × 187,700.25
  4. Step 4: Simplify right side
    561,677.25x = 158,140,440,366.47
  5. Step 5: Solve for x
    x = 158,140,440,366.47/561,677.25
  6. Step 6: Final answer
    x = 281,550.38

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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.