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Finding the Fourth Proportional to 576,154.38, 795,093.06 and 318,031.38

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Solution

The fourth proportional to 576,154.38, 795,093.06 and 318,031.38 is: 438,883.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,154.38 : 795,093.06 = 318,031.38 : x
  2. Step 2: Convert to fraction form
    576,154.38/795,093.06 = 318,031.38/x
  3. Step 3: Cross multiply
    576,154.38x = 795,093.06 × 318,031.38
  4. Step 4: Simplify right side
    576,154.38x = 252,864,543,100.22
  5. Step 5: Solve for x
    x = 252,864,543,100.22/576,154.38
  6. Step 6: Final answer
    x = 438,883.31

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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.