Home / 288,766.22-433,211.09-86,378.18

Finding the Fourth Proportional to 288,766.22, 433,211.09 and 86,378.18

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Solution

The fourth proportional to 288,766.22, 433,211.09 and 86,378.18 is: 129,585.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,766.22 : 433,211.09 = 86,378.18 : x
  2. Step 2: Convert to fraction form
    288,766.22/433,211.09 = 86,378.18/x
  3. Step 3: Cross multiply
    288,766.22x = 433,211.09 × 86,378.18
  4. Step 4: Simplify right side
    288,766.22x = 37,419,982,912.07
  5. Step 5: Solve for x
    x = 37,419,982,912.07/288,766.22
  6. Step 6: Final answer
    x = 129,585.74

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1.5x scale

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.