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Finding the Fourth Proportional to 527,178.48, 790,010.46 and 299,654.88

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Solution

The fourth proportional to 527,178.48, 790,010.46 and 299,654.88 is: 449,051.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,178.48 : 790,010.46 = 299,654.88 : x
  2. Step 2: Convert to fraction form
    527,178.48/790,010.46 = 299,654.88/x
  3. Step 3: Cross multiply
    527,178.48x = 790,010.46 × 299,654.88
  4. Step 4: Simplify right side
    527,178.48x = 236,730,489,590.05
  5. Step 5: Solve for x
    x = 236,730,489,590.05/527,178.48
  6. Step 6: Final answer
    x = 449,051.88

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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.