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Finding the Fourth Proportional to 392,725.22, 587,925.28 and 242,482.42

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Solution

The fourth proportional to 392,725.22, 587,925.28 and 242,482.42 is: 363,005.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,725.22 : 587,925.28 = 242,482.42 : x
  2. Step 2: Convert to fraction form
    392,725.22/587,925.28 = 242,482.42/x
  3. Step 3: Cross multiply
    392,725.22x = 587,925.28 × 242,482.42
  4. Step 4: Simplify right side
    392,725.22x = 142,561,542,597.56
  5. Step 5: Solve for x
    x = 142,561,542,597.56/392,725.22
  6. Step 6: Final answer
    x = 363,005.83

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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.