Home / 526,138.28-725,905.29-321,976.36

Finding the Fourth Proportional to 526,138.28, 725,905.29 and 321,976.36

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Solution

The fourth proportional to 526,138.28, 725,905.29 and 321,976.36 is: 444,226.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,138.28 : 725,905.29 = 321,976.36 : x
  2. Step 2: Convert to fraction form
    526,138.28/725,905.29 = 321,976.36/x
  3. Step 3: Cross multiply
    526,138.28x = 725,905.29 × 321,976.36
  4. Step 4: Simplify right side
    526,138.28x = 233,724,342,978.94
  5. Step 5: Solve for x
    x = 233,724,342,978.94/526,138.28
  6. Step 6: Final answer
    x = 444,226.07

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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.