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Finding the Fourth Proportional to 398,645.66, 550,194.12 and 237,594.13

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Solution

The fourth proportional to 398,645.66, 550,194.12 and 237,594.13 is: 327,917.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,645.66 : 550,194.12 = 237,594.13 : x
  2. Step 2: Convert to fraction form
    398,645.66/550,194.12 = 237,594.13/x
  3. Step 3: Cross multiply
    398,645.66x = 550,194.12 × 237,594.13
  4. Step 4: Simplify right side
    398,645.66x = 130,722,893,931.00
  5. Step 5: Solve for x
    x = 130,722,893,931.00/398,645.66
  6. Step 6: Final answer
    x = 327,917.51

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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.