Home / 714,545.75-986,077.29-392,258.50

Finding the Fourth Proportional to 714,545.75, 986,077.29 and 392,258.50

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Solution

The fourth proportional to 714,545.75, 986,077.29 and 392,258.50 is: 541,319.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,545.75 : 986,077.29 = 392,258.50 : x
  2. Step 2: Convert to fraction form
    714,545.75/986,077.29 = 392,258.50/x
  3. Step 3: Cross multiply
    714,545.75x = 986,077.29 × 392,258.50
  4. Step 4: Simplify right side
    714,545.75x = 386,797,197,665.24
  5. Step 5: Solve for x
    x = 386,797,197,665.24/714,545.75
  6. Step 6: Final answer
    x = 541,319.01

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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.