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Finding the Fourth Proportional to 392,600.31, 587,737.93 and 242,357.51

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Solution

The fourth proportional to 392,600.31, 587,737.93 and 242,357.51 is: 362,818.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,600.31 : 587,737.93 = 242,357.51 : x
  2. Step 2: Convert to fraction form
    392,600.31/587,737.93 = 242,357.51/x
  3. Step 3: Cross multiply
    392,600.31x = 587,737.93 × 242,357.51
  4. Step 4: Simplify right side
    392,600.31x = 142,442,701,247.35
  5. Step 5: Solve for x
    x = 142,442,701,247.35/392,600.31
  6. Step 6: Final answer
    x = 362,818.62

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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.