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Finding the Fourth Proportional to 577,413.90, 866,120.85 and 156,741.90

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Solution

The fourth proportional to 577,413.90, 866,120.85 and 156,741.90 is: 235,112.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,413.90 : 866,120.85 = 156,741.90 : x
  2. Step 2: Convert to fraction form
    577,413.90/866,120.85 = 156,741.90/x
  3. Step 3: Cross multiply
    577,413.90x = 866,120.85 × 156,741.90
  4. Step 4: Simplify right side
    577,413.90x = 135,757,427,658.62
  5. Step 5: Solve for x
    x = 135,757,427,658.62/577,413.90
  6. Step 6: Final answer
    x = 235,112.85

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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.