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Finding the Fourth Proportional to 492,747.90, 739,121.85 and 160,323.90

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Solution

The fourth proportional to 492,747.90, 739,121.85 and 160,323.90 is: 240,485.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,747.90 : 739,121.85 = 160,323.90 : x
  2. Step 2: Convert to fraction form
    492,747.90/739,121.85 = 160,323.90/x
  3. Step 3: Cross multiply
    492,747.90x = 739,121.85 × 160,323.90
  4. Step 4: Simplify right side
    492,747.90x = 118,498,897,567.22
  5. Step 5: Solve for x
    x = 118,498,897,567.22/492,747.90
  6. Step 6: Final answer
    x = 240,485.85

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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.