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Finding the Fourth Proportional to 408,479.88, 563,472.15 and 245,094.12

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Solution

The fourth proportional to 408,479.88, 563,472.15 and 245,094.12 is: 338,091.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,479.88 : 563,472.15 = 245,094.12 : x
  2. Step 2: Convert to fraction form
    408,479.88/563,472.15 = 245,094.12/x
  3. Step 3: Cross multiply
    408,479.88x = 563,472.15 × 245,094.12
  4. Step 4: Simplify right side
    408,479.88x = 138,103,710,748.76
  5. Step 5: Solve for x
    x = 138,103,710,748.76/408,479.88
  6. Step 6: Final answer
    x = 338,091.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.