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Finding the Fourth Proportional to 577,411.90, 866,117.85 and 156,739.90

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Solution

The fourth proportional to 577,411.90, 866,117.85 and 156,739.90 is: 235,109.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,411.90 : 866,117.85 = 156,739.90 : x
  2. Step 2: Convert to fraction form
    577,411.90/866,117.85 = 156,739.90/x
  3. Step 3: Cross multiply
    577,411.90x = 866,117.85 × 156,739.90
  4. Step 4: Simplify right side
    577,411.90x = 135,755,225,197.22
  5. Step 5: Solve for x
    x = 135,755,225,197.22/577,411.90
  6. Step 6: Final answer
    x = 235,109.85

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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.