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Finding the Fourth Proportional to 373,287.52, 515,044.40 and 228,055.92

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Solution

The fourth proportional to 373,287.52, 515,044.40 and 228,055.92 is: 314,660.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,287.52 : 515,044.40 = 228,055.92 : x
  2. Step 2: Convert to fraction form
    373,287.52/515,044.40 = 228,055.92/x
  3. Step 3: Cross multiply
    373,287.52x = 515,044.40 × 228,055.92
  4. Step 4: Simplify right side
    373,287.52x = 117,458,924,482.85
  5. Step 5: Solve for x
    x = 117,458,924,482.85/373,287.52
  6. Step 6: Final answer
    x = 314,660.73

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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.