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Finding the Fourth Proportional to 356,774.60, 534,902.70 and 146,304.20

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Solution

The fourth proportional to 356,774.60, 534,902.70 and 146,304.20 is: 219,350.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,774.60 : 534,902.70 = 146,304.20 : x
  2. Step 2: Convert to fraction form
    356,774.60/534,902.70 = 146,304.20/x
  3. Step 3: Cross multiply
    356,774.60x = 534,902.70 × 146,304.20
  4. Step 4: Simplify right side
    356,774.60x = 78,258,511,601.34
  5. Step 5: Solve for x
    x = 78,258,511,601.34/356,774.60
  6. Step 6: Final answer
    x = 219,350.01

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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.