Home / 714,423.94-985,917.76-392,164.02

Finding the Fourth Proportional to 714,423.94, 985,917.76 and 392,164.02

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Solution

The fourth proportional to 714,423.94, 985,917.76 and 392,164.02 is: 541,193.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,423.94 : 985,917.76 = 392,164.02 : x
  2. Step 2: Convert to fraction form
    714,423.94/985,917.76 = 392,164.02/x
  3. Step 3: Cross multiply
    714,423.94x = 985,917.76 × 392,164.02
  4. Step 4: Simplify right side
    714,423.94x = 386,641,471,170.59
  5. Step 5: Solve for x
    x = 386,641,471,170.59/714,423.94
  6. Step 6: Final answer
    x = 541,193.33

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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.