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Finding the Fourth Proportional to 625,514.72, 938,211.96 and 176,228.36

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Solution

The fourth proportional to 625,514.72, 938,211.96 and 176,228.36 is: 264,325.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,514.72 : 938,211.96 = 176,228.36 : x
  2. Step 2: Convert to fraction form
    625,514.72/938,211.96 = 176,228.36/x
  3. Step 3: Cross multiply
    625,514.72x = 938,211.96 × 176,228.36
  4. Step 4: Simplify right side
    625,514.72x = 165,339,555,043.19
  5. Step 5: Solve for x
    x = 165,339,555,043.19/625,514.72
  6. Step 6: Final answer
    x = 264,325.60

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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.