Home / 719,278.26-992,601.95-396,986.04

Finding the Fourth Proportional to 719,278.26, 992,601.95 and 396,986.04

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Solution

The fourth proportional to 719,278.26, 992,601.95 and 396,986.04 is: 547,839.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,278.26 : 992,601.95 = 396,986.04 : x
  2. Step 2: Convert to fraction form
    719,278.26/992,601.95 = 396,986.04/x
  3. Step 3: Cross multiply
    719,278.26x = 992,601.95 × 396,986.04
  4. Step 4: Simplify right side
    719,278.26x = 394,049,120,652.80
  5. Step 5: Solve for x
    x = 394,049,120,652.80/719,278.26
  6. Step 6: Final answer
    x = 547,839.61

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Double scale
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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.