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Finding the Fourth Proportional to 474,287.06, 654,521.29 and 259,422.40

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Solution

The fourth proportional to 474,287.06, 654,521.29 and 259,422.40 is: 358,005.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,287.06 : 654,521.29 = 259,422.40 : x
  2. Step 2: Convert to fraction form
    474,287.06/654,521.29 = 259,422.40/x
  3. Step 3: Cross multiply
    474,287.06x = 654,521.29 × 259,422.40
  4. Step 4: Simplify right side
    474,287.06x = 169,797,483,902.90
  5. Step 5: Solve for x
    x = 169,797,483,902.90/474,287.06
  6. Step 6: Final answer
    x = 358,005.73

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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.