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Finding the Fourth Proportional to 503,729.55, 755,594.33 and 129,752.55

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Solution

The fourth proportional to 503,729.55, 755,594.33 and 129,752.55 is: 194,628.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,729.55 : 755,594.33 = 129,752.55 : x
  2. Step 2: Convert to fraction form
    503,729.55/755,594.33 = 129,752.55/x
  3. Step 3: Cross multiply
    503,729.55x = 755,594.33 × 129,752.55
  4. Step 4: Simplify right side
    503,729.55x = 98,040,290,434.28
  5. Step 5: Solve for x
    x = 98,040,290,434.28/503,729.55
  6. Step 6: Final answer
    x = 194,628.83

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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.