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Finding the Fourth Proportional to 534,309.90, 801,464.85 and 254,373.90

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Solution

The fourth proportional to 534,309.90, 801,464.85 and 254,373.90 is: 381,560.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,309.90 : 801,464.85 = 254,373.90 : x
  2. Step 2: Convert to fraction form
    534,309.90/801,464.85 = 254,373.90/x
  3. Step 3: Cross multiply
    534,309.90x = 801,464.85 × 254,373.90
  4. Step 4: Simplify right side
    534,309.90x = 203,871,739,607.42
  5. Step 5: Solve for x
    x = 203,871,739,607.42/534,309.90
  6. Step 6: Final answer
    x = 381,560.85

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.