Home / 861,802.28-1,189,336.20-517,743.44

Finding the Fourth Proportional to 861,802.28, 1,189,336.20 and 517,743.44

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Solution

The fourth proportional to 861,802.28, 1,189,336.20 and 517,743.44 is: 714,515.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,802.28 : 1,189,336.20 = 517,743.44 : x
  2. Step 2: Convert to fraction form
    861,802.28/1,189,336.20 = 517,743.44/x
  3. Step 3: Cross multiply
    861,802.28x = 1,189,336.20 × 517,743.44
  4. Step 4: Simplify right side
    861,802.28x = 615,771,015,504.53
  5. Step 5: Solve for x
    x = 615,771,015,504.53/861,802.28
  6. Step 6: Final answer
    x = 714,515.42

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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.