Home / 714,478.44-985,976.46-392,194.20

Finding the Fourth Proportional to 714,478.44, 985,976.46 and 392,194.20

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Solution

The fourth proportional to 714,478.44, 985,976.46 and 392,194.20 is: 541,225.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,478.44 : 985,976.46 = 392,194.20 : x
  2. Step 2: Convert to fraction form
    714,478.44/985,976.46 = 392,194.20/x
  3. Step 3: Cross multiply
    714,478.44x = 985,976.46 × 392,194.20
  4. Step 4: Simplify right side
    714,478.44x = 386,694,248,948.53
  5. Step 5: Solve for x
    x = 386,694,248,948.53/714,478.44
  6. Step 6: Final answer
    x = 541,225.92

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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.