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Finding the Fourth Proportional to 495,882.40, 744,601.20 and 285,930.40

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Solution

The fourth proportional to 495,882.40, 744,601.20 and 285,930.40 is: 429,343.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,882.40 : 744,601.20 = 285,930.40 : x
  2. Step 2: Convert to fraction form
    495,882.40/744,601.20 = 285,930.40/x
  3. Step 3: Cross multiply
    495,882.40x = 744,601.20 × 285,930.40
  4. Step 4: Simplify right side
    495,882.40x = 212,904,118,956.48
  5. Step 5: Solve for x
    x = 212,904,118,956.48/495,882.40
  6. Step 6: Final answer
    x = 429,343.97

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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.