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Finding the Fourth Proportional to 372,968.70, 558,140.85 and 341,475.90

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Solution

The fourth proportional to 372,968.70, 558,140.85 and 341,475.90 is: 511,012.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,968.70 : 558,140.85 = 341,475.90 : x
  2. Step 2: Convert to fraction form
    372,968.70/558,140.85 = 341,475.90/x
  3. Step 3: Cross multiply
    372,968.70x = 558,140.85 × 341,475.90
  4. Step 4: Simplify right side
    372,968.70x = 190,591,649,080.52
  5. Step 5: Solve for x
    x = 190,591,649,080.52/372,968.70
  6. Step 6: Final answer
    x = 511,012.45

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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.