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Finding the Fourth Proportional to 372,839.42, 514,342.50 and 252,022.88

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Solution

The fourth proportional to 372,839.42, 514,342.50 and 252,022.88 is: 347,672.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,839.42 : 514,342.50 = 252,022.88 : x
  2. Step 2: Convert to fraction form
    372,839.42/514,342.50 = 252,022.88/x
  3. Step 3: Cross multiply
    372,839.42x = 514,342.50 × 252,022.88
  4. Step 4: Simplify right side
    372,839.42x = 129,626,078,156.40
  5. Step 5: Solve for x
    x = 129,626,078,156.40/372,839.42
  6. Step 6: Final answer
    x = 347,672.67

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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.