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Finding the Fourth Proportional to 550,215.92, 825,397.32 and 217,714.16

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Solution

The fourth proportional to 550,215.92, 825,397.32 and 217,714.16 is: 326,600.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,215.92 : 825,397.32 = 217,714.16 : x
  2. Step 2: Convert to fraction form
    550,215.92/825,397.32 = 217,714.16/x
  3. Step 3: Cross multiply
    550,215.92x = 825,397.32 × 217,714.16
  4. Step 4: Simplify right side
    550,215.92x = 179,700,684,190.05
  5. Step 5: Solve for x
    x = 179,700,684,190.05/550,215.92
  6. Step 6: Final answer
    x = 326,600.30

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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.