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Finding the Fourth Proportional to 392,599.81, 587,737.18 and 242,357.01

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Solution

The fourth proportional to 392,599.81, 587,737.18 and 242,357.01 is: 362,817.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,599.81 : 587,737.18 = 242,357.01 : x
  2. Step 2: Convert to fraction form
    392,599.81/587,737.18 = 242,357.01/x
  3. Step 3: Cross multiply
    392,599.81x = 587,737.18 × 242,357.01
  4. Step 4: Simplify right side
    392,599.81x = 142,442,222,671.95
  5. Step 5: Solve for x
    x = 142,442,222,671.95/392,599.81
  6. Step 6: Final answer
    x = 362,817.86

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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.