Home / 714,893.27-986,569.88-392,610.31

Finding the Fourth Proportional to 714,893.27, 986,569.88 and 392,610.31

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Solution

The fourth proportional to 714,893.27, 986,569.88 and 392,610.31 is: 541,811.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,893.27 : 986,569.88 = 392,610.31 : x
  2. Step 2: Convert to fraction form
    714,893.27/986,569.88 = 392,610.31/x
  3. Step 3: Cross multiply
    714,893.27x = 986,569.88 × 392,610.31
  4. Step 4: Simplify right side
    714,893.27x = 387,337,501,993.99
  5. Step 5: Solve for x
    x = 387,337,501,993.99/714,893.27
  6. Step 6: Final answer
    x = 541,811.65

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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.