Home / 387,584.73-534,911.27-215,519.85

Finding the Fourth Proportional to 387,584.73, 534,911.27 and 215,519.85

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Solution

The fourth proportional to 387,584.73, 534,911.27 and 215,519.85 is: 297,442.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,584.73 : 534,911.27 = 215,519.85 : x
  2. Step 2: Convert to fraction form
    387,584.73/534,911.27 = 215,519.85/x
  3. Step 3: Cross multiply
    387,584.73x = 534,911.27 × 215,519.85
  4. Step 4: Simplify right side
    387,584.73x = 115,283,995,596.11
  5. Step 5: Solve for x
    x = 115,283,995,596.11/387,584.73
  6. Step 6: Final answer
    x = 297,442.05

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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.