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Finding the Fourth Proportional to 398,673.29, 550,148.29 and 226,568.24

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Solution

The fourth proportional to 398,673.29, 550,148.29 and 226,568.24 is: 312,652.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,673.29 : 550,148.29 = 226,568.24 : x
  2. Step 2: Convert to fraction form
    398,673.29/550,148.29 = 226,568.24/x
  3. Step 3: Cross multiply
    398,673.29x = 550,148.29 × 226,568.24
  4. Step 4: Simplify right side
    398,673.29x = 124,646,125,920.73
  5. Step 5: Solve for x
    x = 124,646,125,920.73/398,673.29
  6. Step 6: Final answer
    x = 312,652.32

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1.5x scale

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.