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Finding the Fourth Proportional to 413,279.16, 619,327.28 and 235,418.66

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Solution

The fourth proportional to 413,279.16, 619,327.28 and 235,418.66 is: 352,791.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,279.16 : 619,327.28 = 235,418.66 : x
  2. Step 2: Convert to fraction form
    413,279.16/619,327.28 = 235,418.66/x
  3. Step 3: Cross multiply
    413,279.16x = 619,327.28 × 235,418.66
  4. Step 4: Simplify right side
    413,279.16x = 145,801,194,085.32
  5. Step 5: Solve for x
    x = 145,801,194,085.32/413,279.16
  6. Step 6: Final answer
    x = 352,791.06

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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.