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Finding the Fourth Proportional to 526,475.16, 790,118.82 and 391,843.44

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Solution

The fourth proportional to 526,475.16, 790,118.82 and 391,843.44 is: 588,067.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,475.16 : 790,118.82 = 391,843.44 : x
  2. Step 2: Convert to fraction form
    526,475.16/790,118.82 = 391,843.44/x
  3. Step 3: Cross multiply
    526,475.16x = 790,118.82 × 391,843.44
  4. Step 4: Simplify right side
    526,475.16x = 309,602,876,437.54
  5. Step 5: Solve for x
    x = 309,602,876,437.54/526,475.16
  6. Step 6: Final answer
    x = 588,067.40

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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.