Home / 714,730.27-986,341.46-392,473.39

Finding the Fourth Proportional to 714,730.27, 986,341.46 and 392,473.39

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Solution

The fourth proportional to 714,730.27, 986,341.46 and 392,473.39 is: 541,620.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,730.27 : 986,341.46 = 392,473.39 : x
  2. Step 2: Convert to fraction form
    714,730.27/986,341.46 = 392,473.39/x
  3. Step 3: Cross multiply
    714,730.27x = 986,341.46 × 392,473.39
  4. Step 4: Simplify right side
    714,730.27x = 387,112,776,503.75
  5. Step 5: Solve for x
    x = 387,112,776,503.75/714,730.27
  6. Step 6: Final answer
    x = 541,620.79

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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.