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Finding the Fourth Proportional to 304,832.40, 457,248.60 and 178,861.20

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Solution

The fourth proportional to 304,832.40, 457,248.60 and 178,861.20 is: 268,291.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,832.40 : 457,248.60 = 178,861.20 : x
  2. Step 2: Convert to fraction form
    304,832.40/457,248.60 = 178,861.20/x
  3. Step 3: Cross multiply
    304,832.40x = 457,248.60 × 178,861.20
  4. Step 4: Simplify right side
    304,832.40x = 81,784,033,294.32
  5. Step 5: Solve for x
    x = 81,784,033,294.32/304,832.40
  6. Step 6: Final answer
    x = 268,291.80

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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.