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Finding the Fourth Proportional to 499,092.60, 748,638.90 and 274,366.20

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Solution

The fourth proportional to 499,092.60, 748,638.90 and 274,366.20 is: 411,549.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,092.60 : 748,638.90 = 274,366.20 : x
  2. Step 2: Convert to fraction form
    499,092.60/748,638.90 = 274,366.20/x
  3. Step 3: Cross multiply
    499,092.60x = 748,638.90 × 274,366.20
  4. Step 4: Simplify right side
    499,092.60x = 205,401,210,165.18
  5. Step 5: Solve for x
    x = 205,401,210,165.18/499,092.60
  6. Step 6: Final answer
    x = 411,549.30

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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.