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Finding the Fourth Proportional to 494,801.40, 742,158.90 and 162,377.40

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Solution

The fourth proportional to 494,801.40, 742,158.90 and 162,377.40 is: 243,551.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,801.40 : 742,158.90 = 162,377.40 : x
  2. Step 2: Convert to fraction form
    494,801.40/742,158.90 = 162,377.40/x
  3. Step 3: Cross multiply
    494,801.40x = 742,158.90 × 162,377.40
  4. Step 4: Simplify right side
    494,801.40x = 120,509,832,568.86
  5. Step 5: Solve for x
    x = 120,509,832,568.86/494,801.40
  6. Step 6: Final answer
    x = 243,551.92

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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.