Home / 714,968.64-986,656.14-392,687.46

Finding the Fourth Proportional to 714,968.64, 986,656.14 and 392,687.46

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Solution

The fourth proportional to 714,968.64, 986,656.14 and 392,687.46 is: 541,908.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,968.64 : 986,656.14 = 392,687.46 : x
  2. Step 2: Convert to fraction form
    714,968.64/986,656.14 = 392,687.46/x
  3. Step 3: Cross multiply
    714,968.64x = 986,656.14 × 392,687.46
  4. Step 4: Simplify right side
    714,968.64x = 387,447,493,510.00
  5. Step 5: Solve for x
    x = 387,447,493,510.00/714,968.64
  6. Step 6: Final answer
    x = 541,908.37

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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.