Home / 409,279.04-560,714.94-393,938.52

Finding the Fourth Proportional to 409,279.04, 560,714.94 and 393,938.52

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Solution

The fourth proportional to 409,279.04, 560,714.94 and 393,938.52 is: 539,698.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,279.04 : 560,714.94 = 393,938.52 : x
  2. Step 2: Convert to fraction form
    409,279.04/560,714.94 = 393,938.52/x
  3. Step 3: Cross multiply
    409,279.04x = 560,714.94 × 393,938.52
  4. Step 4: Simplify right side
    409,279.04x = 220,887,213,605.49
  5. Step 5: Solve for x
    x = 220,887,213,605.49/409,279.04
  6. Step 6: Final answer
    x = 539,698.33

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.