Home / 861,644.93-1,188,295.92-539,384.40

Finding the Fourth Proportional to 861,644.93, 1,188,295.92 and 539,384.40

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Solution

The fourth proportional to 861,644.93, 1,188,295.92 and 539,384.40 is: 743,865.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,644.93 : 1,188,295.92 = 539,384.40 : x
  2. Step 2: Convert to fraction form
    861,644.93/1,188,295.92 = 539,384.40/x
  3. Step 3: Cross multiply
    861,644.93x = 1,188,295.92 × 539,384.40
  4. Step 4: Simplify right side
    861,644.93x = 640,948,281,831.65
  5. Step 5: Solve for x
    x = 640,948,281,831.65/861,644.93
  6. Step 6: Final answer
    x = 743,865.90

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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.