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Finding the Fourth Proportional to 556,839.34, 768,041.11 and 511,046.53

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Solution

The fourth proportional to 556,839.34, 768,041.11 and 511,046.53 is: 704,879.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,839.34 : 768,041.11 = 511,046.53 : x
  2. Step 2: Convert to fraction form
    556,839.34/768,041.11 = 511,046.53/x
  3. Step 3: Cross multiply
    556,839.34x = 768,041.11 × 511,046.53
  4. Step 4: Simplify right side
    556,839.34x = 392,504,744,162.85
  5. Step 5: Solve for x
    x = 392,504,744,162.85/556,839.34
  6. Step 6: Final answer
    x = 704,879.70

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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.