Home / 825,726.20-1,239,741.30-528,049.40

Finding the Fourth Proportional to 825,726.20, 1,239,741.30 and 528,049.40

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Solution

The fourth proportional to 825,726.20, 1,239,741.30 and 528,049.40 is: 792,810.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,726.20 : 1,239,741.30 = 528,049.40 : x
  2. Step 2: Convert to fraction form
    825,726.20/1,239,741.30 = 528,049.40/x
  3. Step 3: Cross multiply
    825,726.20x = 1,239,741.30 × 528,049.40
  4. Step 4: Simplify right side
    825,726.20x = 654,644,649,620.22
  5. Step 5: Solve for x
    x = 654,644,649,620.22/825,726.20
  6. Step 6: Final answer
    x = 792,810.80

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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.