Home / 769,065.76-1,061,778.32-527,744.80

Finding the Fourth Proportional to 769,065.76, 1,061,778.32 and 527,744.80

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Solution

The fourth proportional to 769,065.76, 1,061,778.32 and 527,744.80 is: 728,608.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,065.76 : 1,061,778.32 = 527,744.80 : x
  2. Step 2: Convert to fraction form
    769,065.76/1,061,778.32 = 527,744.80/x
  3. Step 3: Cross multiply
    769,065.76x = 1,061,778.32 × 527,744.80
  4. Step 4: Simplify right side
    769,065.76x = 560,347,987,132.74
  5. Step 5: Solve for x
    x = 560,347,987,132.74/769,065.76
  6. Step 6: Final answer
    x = 728,608.68

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1.5x scale

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.