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Finding the Fourth Proportional to 304,272.76, 456,517.28 and 135,777.76

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Solution

The fourth proportional to 304,272.76, 456,517.28 and 135,777.76 is: 203,714.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,272.76 : 456,517.28 = 135,777.76 : x
  2. Step 2: Convert to fraction form
    304,272.76/456,517.28 = 135,777.76/x
  3. Step 3: Cross multiply
    304,272.76x = 456,517.28 × 135,777.76
  4. Step 4: Simplify right side
    304,272.76x = 61,984,893,679.69
  5. Step 5: Solve for x
    x = 61,984,893,679.69/304,272.76
  6. Step 6: Final answer
    x = 203,714.90

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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.