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Finding the Fourth Proportional to 335,959.20, 503,355.60 and 217,569.60

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Solution

The fourth proportional to 335,959.20, 503,355.60 and 217,569.60 is: 325,976.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,959.20 : 503,355.60 = 217,569.60 : x
  2. Step 2: Convert to fraction form
    335,959.20/503,355.60 = 217,569.60/x
  3. Step 3: Cross multiply
    335,959.20x = 503,355.60 × 217,569.60
  4. Step 4: Simplify right side
    335,959.20x = 109,514,876,549.76
  5. Step 5: Solve for x
    x = 109,514,876,549.76/335,959.20
  6. Step 6: Final answer
    x = 325,976.72

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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.