Home / 714,824.72-986,464.96-392,541.56

Finding the Fourth Proportional to 714,824.72, 986,464.96 and 392,541.56

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Solution

The fourth proportional to 714,824.72, 986,464.96 and 392,541.56 is: 541,711.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,824.72 : 986,464.96 = 392,541.56 : x
  2. Step 2: Convert to fraction form
    714,824.72/986,464.96 = 392,541.56/x
  3. Step 3: Cross multiply
    714,824.72x = 986,464.96 × 392,541.56
  4. Step 4: Simplify right side
    714,824.72x = 387,228,494,283.74
  5. Step 5: Solve for x
    x = 387,228,494,283.74/714,824.72
  6. Step 6: Final answer
    x = 541,711.11

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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.