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Finding the Fourth Proportional to 707,514.66, 976,387.73 and 385,242.39

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Solution

The fourth proportional to 707,514.66, 976,387.73 and 385,242.39 is: 531,644.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,514.66 : 976,387.73 = 385,242.39 : x
  2. Step 2: Convert to fraction form
    707,514.66/976,387.73 = 385,242.39/x
  3. Step 3: Cross multiply
    707,514.66x = 976,387.73 × 385,242.39
  4. Step 4: Simplify right side
    707,514.66x = 376,145,940,745.66
  5. Step 5: Solve for x
    x = 376,145,940,745.66/707,514.66
  6. Step 6: Final answer
    x = 531,644.02

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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.