Home / 819,652.65-1,131,121.82-452,121.59

Finding the Fourth Proportional to 819,652.65, 1,131,121.82 and 452,121.59

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Solution

The fourth proportional to 819,652.65, 1,131,121.82 and 452,121.59 is: 623,928.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,652.65 : 1,131,121.82 = 452,121.59 : x
  2. Step 2: Convert to fraction form
    819,652.65/1,131,121.82 = 452,121.59/x
  3. Step 3: Cross multiply
    819,652.65x = 1,131,121.82 × 452,121.59
  4. Step 4: Simplify right side
    819,652.65x = 511,404,587,825.88
  5. Step 5: Solve for x
    x = 511,404,587,825.88/819,652.65
  6. Step 6: Final answer
    x = 623,928.43

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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.