Home / 714,511.54-986,022.03-392,227.12

Finding the Fourth Proportional to 714,511.54, 986,022.03 and 392,227.12

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Solution

The fourth proportional to 714,511.54, 986,022.03 and 392,227.12 is: 541,271.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,511.54 : 986,022.03 = 392,227.12 : x
  2. Step 2: Convert to fraction form
    714,511.54/986,022.03 = 392,227.12/x
  3. Step 3: Cross multiply
    714,511.54x = 986,022.03 × 392,227.12
  4. Step 4: Simplify right side
    714,511.54x = 386,744,578,618.40
  5. Step 5: Solve for x
    x = 386,744,578,618.40/714,511.54
  6. Step 6: Final answer
    x = 541,271.29

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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.