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Finding the Fourth Proportional to 395,514.89, 545,659.90 and 292,396.69

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Solution

The fourth proportional to 395,514.89, 545,659.90 and 292,396.69 is: 403,396.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,514.89 : 545,659.90 = 292,396.69 : x
  2. Step 2: Convert to fraction form
    395,514.89/545,659.90 = 292,396.69/x
  3. Step 3: Cross multiply
    395,514.89x = 545,659.90 × 292,396.69
  4. Step 4: Simplify right side
    395,514.89x = 159,549,148,625.73
  5. Step 5: Solve for x
    x = 159,549,148,625.73/395,514.89
  6. Step 6: Final answer
    x = 403,396.06

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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.