Home / 714,756.24-986,318.82-392,464.80

Finding the Fourth Proportional to 714,756.24, 986,318.82 and 392,464.80

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Solution

The fourth proportional to 714,756.24, 986,318.82 and 392,464.80 is: 541,576.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,756.24 : 986,318.82 = 392,464.80 : x
  2. Step 2: Convert to fraction form
    714,756.24/986,318.82 = 392,464.80/x
  3. Step 3: Cross multiply
    714,756.24x = 986,318.82 × 392,464.80
  4. Step 4: Simplify right side
    714,756.24x = 387,095,418,427.54
  5. Step 5: Solve for x
    x = 387,095,418,427.54/714,756.24
  6. Step 6: Final answer
    x = 541,576.83

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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.