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Finding the Fourth Proportional to 429,481.66, 644,079.45 and 173,248.03

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Solution

The fourth proportional to 429,481.66, 644,079.45 and 173,248.03 is: 259,814.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,481.66 : 644,079.45 = 173,248.03 : x
  2. Step 2: Convert to fraction form
    429,481.66/644,079.45 = 173,248.03/x
  3. Step 3: Cross multiply
    429,481.66x = 644,079.45 × 173,248.03
  4. Step 4: Simplify right side
    429,481.66x = 111,585,496,356.24
  5. Step 5: Solve for x
    x = 111,585,496,356.24/429,481.66
  6. Step 6: Final answer
    x = 259,814.35

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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.