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Finding the Fourth Proportional to 382,691.70, 574,120.60 and 116,445.30

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Solution

The fourth proportional to 382,691.70, 574,120.60 and 116,445.30 is: 174,693.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,691.70 : 574,120.60 = 116,445.30 : x
  2. Step 2: Convert to fraction form
    382,691.70/574,120.60 = 116,445.30/x
  3. Step 3: Cross multiply
    382,691.70x = 574,120.60 × 116,445.30
  4. Step 4: Simplify right side
    382,691.70x = 66,853,645,503.18
  5. Step 5: Solve for x
    x = 66,853,645,503.18/382,691.70
  6. Step 6: Final answer
    x = 174,693.22

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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.