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Finding the Fourth Proportional to 372,217.40, 558,114.60 and 254,031.92

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Solution

The fourth proportional to 372,217.40, 558,114.60 and 254,031.92 is: 380,903.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,217.40 : 558,114.60 = 254,031.92 : x
  2. Step 2: Convert to fraction form
    372,217.40/558,114.60 = 254,031.92/x
  3. Step 3: Cross multiply
    372,217.40x = 558,114.60 × 254,031.92
  4. Step 4: Simplify right side
    372,217.40x = 141,778,923,418.03
  5. Step 5: Solve for x
    x = 141,778,923,418.03/372,217.40
  6. Step 6: Final answer
    x = 380,903.53

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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.