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Finding the Fourth Proportional to 576,700.44, 795,869.13 and 318,590.70

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Solution

The fourth proportional to 576,700.44, 795,869.13 and 318,590.70 is: 439,667.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,700.44 : 795,869.13 = 318,590.70 : x
  2. Step 2: Convert to fraction form
    576,700.44/795,869.13 = 318,590.70/x
  3. Step 3: Cross multiply
    576,700.44x = 795,869.13 × 318,590.70
  4. Step 4: Simplify right side
    576,700.44x = 253,556,503,235.09
  5. Step 5: Solve for x
    x = 253,556,503,235.09/576,700.44
  6. Step 6: Final answer
    x = 439,667.61

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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.