Home / 714,991.64-986,696.57-392,709.24

Finding the Fourth Proportional to 714,991.64, 986,696.57 and 392,709.24

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Solution

The fourth proportional to 714,991.64, 986,696.57 and 392,709.24 is: 541,943.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,991.64 : 986,696.57 = 392,709.24 : x
  2. Step 2: Convert to fraction form
    714,991.64/986,696.57 = 392,709.24/x
  3. Step 3: Cross multiply
    714,991.64x = 986,696.57 × 392,709.24
  4. Step 4: Simplify right side
    714,991.64x = 387,484,861,097.08
  5. Step 5: Solve for x
    x = 387,484,861,097.08/714,991.64
  6. Step 6: Final answer
    x = 541,943.21

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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.