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Finding the Fourth Proportional to 513,996.52, 767,230.29 and 453,396.20

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Solution

The fourth proportional to 513,996.52, 767,230.29 and 453,396.20 is: 676,773.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,996.52 : 767,230.29 = 453,396.20 : x
  2. Step 2: Convert to fraction form
    513,996.52/767,230.29 = 453,396.20/x
  3. Step 3: Cross multiply
    513,996.52x = 767,230.29 × 453,396.20
  4. Step 4: Simplify right side
    513,996.52x = 347,859,298,010.90
  5. Step 5: Solve for x
    x = 347,859,298,010.90/513,996.52
  6. Step 6: Final answer
    x = 676,773.64

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.