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Finding the Fourth Proportional to 483,876.90, 666,765.33 and 374,315.69

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Solution

The fourth proportional to 483,876.90, 666,765.33 and 374,315.69 is: 515,793.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,876.90 : 666,765.33 = 374,315.69 : x
  2. Step 2: Convert to fraction form
    483,876.90/666,765.33 = 374,315.69/x
  3. Step 3: Cross multiply
    483,876.90x = 666,765.33 × 374,315.69
  4. Step 4: Simplify right side
    483,876.90x = 249,580,721,233.20
  5. Step 5: Solve for x
    x = 249,580,721,233.20/483,876.90
  6. Step 6: Final answer
    x = 515,793.83

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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.