Home / 891,321.03-1,229,624.96-528,760.17

Finding the Fourth Proportional to 891,321.03, 1,229,624.96 and 528,760.17

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Solution

The fourth proportional to 891,321.03, 1,229,624.96 and 528,760.17 is: 729,452.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,321.03 : 1,229,624.96 = 528,760.17 : x
  2. Step 2: Convert to fraction form
    891,321.03/1,229,624.96 = 528,760.17/x
  3. Step 3: Cross multiply
    891,321.03x = 1,229,624.96 × 528,760.17
  4. Step 4: Simplify right side
    891,321.03x = 650,176,700,242.04
  5. Step 5: Solve for x
    x = 650,176,700,242.04/891,321.03
  6. Step 6: Final answer
    x = 729,452.89

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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.