Home / 551,786.40-826,586.10-486,030.60

Finding the Fourth Proportional to 551,786.40, 826,586.10 and 486,030.60

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Solution

The fourth proportional to 551,786.40, 826,586.10 and 486,030.60 is: 728,082.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,786.40 : 826,586.10 = 486,030.60 : x
  2. Step 2: Convert to fraction form
    551,786.40/826,586.10 = 486,030.60/x
  3. Step 3: Cross multiply
    551,786.40x = 826,586.10 × 486,030.60
  4. Step 4: Simplify right side
    551,786.40x = 401,746,138,134.66
  5. Step 5: Solve for x
    x = 401,746,138,134.66/551,786.40
  6. Step 6: Final answer
    x = 728,082.71

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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.