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Finding the Fourth Proportional to 354,844.80, 532,267.20 and 214,876.80

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Solution

The fourth proportional to 354,844.80, 532,267.20 and 214,876.80 is: 322,315.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,844.80 : 532,267.20 = 214,876.80 : x
  2. Step 2: Convert to fraction form
    354,844.80/532,267.20 = 214,876.80/x
  3. Step 3: Cross multiply
    354,844.80x = 532,267.20 × 214,876.80
  4. Step 4: Simplify right side
    354,844.80x = 114,371,872,680.96
  5. Step 5: Solve for x
    x = 114,371,872,680.96/354,844.80
  6. Step 6: Final answer
    x = 322,315.20

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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.