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Finding the Fourth Proportional to 373,959.20, 560,938.80 and 314,910.20

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Solution

The fourth proportional to 373,959.20, 560,938.80 and 314,910.20 is: 472,365.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,959.20 : 560,938.80 = 314,910.20 : x
  2. Step 2: Convert to fraction form
    373,959.20/560,938.80 = 314,910.20/x
  3. Step 3: Cross multiply
    373,959.20x = 560,938.80 × 314,910.20
  4. Step 4: Simplify right side
    373,959.20x = 176,645,349,695.76
  5. Step 5: Solve for x
    x = 176,645,349,695.76/373,959.20
  6. Step 6: Final answer
    x = 472,365.30

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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.