Home / 777,831.31-1,073,025.67-519,771.61

Finding the Fourth Proportional to 777,831.31, 1,073,025.67 and 519,771.61

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Solution

The fourth proportional to 777,831.31, 1,073,025.67 and 519,771.61 is: 717,029.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,831.31 : 1,073,025.67 = 519,771.61 : x
  2. Step 2: Convert to fraction form
    777,831.31/1,073,025.67 = 519,771.61/x
  3. Step 3: Cross multiply
    777,831.31x = 1,073,025.67 × 519,771.61
  4. Step 4: Simplify right side
    777,831.31x = 557,728,280,067.23
  5. Step 5: Solve for x
    x = 557,728,280,067.23/777,831.31
  6. Step 6: Final answer
    x = 717,029.87

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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.