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Finding the Fourth Proportional to 317,009.60, 475,252.32 and 247,198.40

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Solution

The fourth proportional to 317,009.60, 475,252.32 and 247,198.40 is: 370,593.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,009.60 : 475,252.32 = 247,198.40 : x
  2. Step 2: Convert to fraction form
    317,009.60/475,252.32 = 247,198.40/x
  3. Step 3: Cross multiply
    317,009.60x = 475,252.32 × 247,198.40
  4. Step 4: Simplify right side
    317,009.60x = 117,481,613,100.29
  5. Step 5: Solve for x
    x = 117,481,613,100.29/317,009.60
  6. Step 6: Final answer
    x = 370,593.23

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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.