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Finding the Fourth Proportional to 768,851.78, 1,153,282.53 and 504,292.82

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Solution

The fourth proportional to 768,851.78, 1,153,282.53 and 504,292.82 is: 756,442.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,851.78 : 1,153,282.53 = 504,292.82 : x
  2. Step 2: Convert to fraction form
    768,851.78/1,153,282.53 = 504,292.82/x
  3. Step 3: Cross multiply
    768,851.78x = 1,153,282.53 × 504,292.82
  4. Step 4: Simplify right side
    768,851.78x = 581,592,099,310.44
  5. Step 5: Solve for x
    x = 581,592,099,310.44/768,851.78
  6. Step 6: Final answer
    x = 756,442.42

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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.