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Finding the Fourth Proportional to 348,031.20, 522,104.40 and 148,447.20

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Solution

The fourth proportional to 348,031.20, 522,104.40 and 148,447.20 is: 222,695.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,031.20 : 522,104.40 = 148,447.20 : x
  2. Step 2: Convert to fraction form
    348,031.20/522,104.40 = 148,447.20/x
  3. Step 3: Cross multiply
    348,031.20x = 522,104.40 × 148,447.20
  4. Step 4: Simplify right side
    348,031.20x = 77,504,936,287.68
  5. Step 5: Solve for x
    x = 77,504,936,287.68/348,031.20
  6. Step 6: Final answer
    x = 222,695.37

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1.5x scale

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.