Home / 714,979.44-986,683.50-392,719.32

Finding the Fourth Proportional to 714,979.44, 986,683.50 and 392,719.32

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Solution

The fourth proportional to 714,979.44, 986,683.50 and 392,719.32 is: 541,959.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,979.44 : 986,683.50 = 392,719.32 : x
  2. Step 2: Convert to fraction form
    714,979.44/986,683.50 = 392,719.32/x
  3. Step 3: Cross multiply
    714,979.44x = 986,683.50 × 392,719.32
  4. Step 4: Simplify right side
    714,979.44x = 387,489,673,175.22
  5. Step 5: Solve for x
    x = 387,489,673,175.22/714,979.44
  6. Step 6: Final answer
    x = 541,959.18

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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.