Home / 819,621.44-1,131,158.22-497,306.24

Finding the Fourth Proportional to 819,621.44, 1,131,158.22 and 497,306.24

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Solution

The fourth proportional to 819,621.44, 1,131,158.22 and 497,306.24 is: 686,331.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,621.44 : 1,131,158.22 = 497,306.24 : x
  2. Step 2: Convert to fraction form
    819,621.44/1,131,158.22 = 497,306.24/x
  3. Step 3: Cross multiply
    819,621.44x = 1,131,158.22 × 497,306.24
  4. Step 4: Simplify right side
    819,621.44x = 562,532,041,233.29
  5. Step 5: Solve for x
    x = 562,532,041,233.29/819,621.44
  6. Step 6: Final answer
    x = 686,331.54

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Double scale
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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.