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Finding the Fourth Proportional to 555,585.48, 766,650.42 and 313,894.44

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Solution

The fourth proportional to 555,585.48, 766,650.42 and 313,894.44 is: 433,141.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,585.48 : 766,650.42 = 313,894.44 : x
  2. Step 2: Convert to fraction form
    555,585.48/766,650.42 = 313,894.44/x
  3. Step 3: Cross multiply
    555,585.48x = 766,650.42 × 313,894.44
  4. Step 4: Simplify right side
    555,585.48x = 240,647,304,261.67
  5. Step 5: Solve for x
    x = 240,647,304,261.67/555,585.48
  6. Step 6: Final answer
    x = 433,141.82

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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.