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Finding the Fourth Proportional to 577,414.90, 866,122.35 and 156,742.90

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Solution

The fourth proportional to 577,414.90, 866,122.35 and 156,742.90 is: 235,114.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,414.90 : 866,122.35 = 156,742.90 : x
  2. Step 2: Convert to fraction form
    577,414.90/866,122.35 = 156,742.90/x
  3. Step 3: Cross multiply
    577,414.90x = 866,122.35 × 156,742.90
  4. Step 4: Simplify right side
    577,414.90x = 135,758,528,893.82
  5. Step 5: Solve for x
    x = 135,758,528,893.82/577,414.90
  6. Step 6: Final answer
    x = 235,114.35

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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.