Home / 819,697.28-1,131,180.03-457,121.52

Finding the Fourth Proportional to 819,697.28, 1,131,180.03 and 457,121.52

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Solution

The fourth proportional to 819,697.28, 1,131,180.03 and 457,121.52 is: 630,826.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,697.28 : 1,131,180.03 = 457,121.52 : x
  2. Step 2: Convert to fraction form
    819,697.28/1,131,180.03 = 457,121.52/x
  3. Step 3: Cross multiply
    819,697.28x = 1,131,180.03 × 457,121.52
  4. Step 4: Simplify right side
    819,697.28x = 517,086,734,707.25
  5. Step 5: Solve for x
    x = 517,086,734,707.25/819,697.28
  6. Step 6: Final answer
    x = 630,826.47

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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.