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Finding the Fourth Proportional to 547,848.75, 821,773.12 and 148,489.53

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Solution

The fourth proportional to 547,848.75, 821,773.12 and 148,489.53 is: 222,734.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,848.75 : 821,773.12 = 148,489.53 : x
  2. Step 2: Convert to fraction form
    547,848.75/821,773.12 = 148,489.53/x
  3. Step 3: Cross multiply
    547,848.75x = 821,773.12 × 148,489.53
  4. Step 4: Simplify right side
    547,848.75x = 122,024,704,355.43
  5. Step 5: Solve for x
    x = 122,024,704,355.43/547,848.75
  6. Step 6: Final answer
    x = 222,734.29

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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.