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Finding the Fourth Proportional to 480,675.26, 717,877.28 and 408,832.31

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Solution

The fourth proportional to 480,675.26, 717,877.28 and 408,832.31 is: 610,581.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,675.26 : 717,877.28 = 408,832.31 : x
  2. Step 2: Convert to fraction form
    480,675.26/717,877.28 = 408,832.31/x
  3. Step 3: Cross multiply
    480,675.26x = 717,877.28 × 408,832.31
  4. Step 4: Simplify right side
    480,675.26x = 293,491,429,495.69
  5. Step 5: Solve for x
    x = 293,491,429,495.69/480,675.26
  6. Step 6: Final answer
    x = 610,581.51

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.