Home / 526,137.28-725,903.91-321,975.36

Finding the Fourth Proportional to 526,137.28, 725,903.91 and 321,975.36

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Solution

The fourth proportional to 526,137.28, 725,903.91 and 321,975.36 is: 444,224.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,137.28 : 725,903.91 = 321,975.36 : x
  2. Step 2: Convert to fraction form
    526,137.28/725,903.91 = 321,975.36/x
  3. Step 3: Cross multiply
    526,137.28x = 725,903.91 × 321,975.36
  4. Step 4: Simplify right side
    526,137.28x = 233,723,172,747.66
  5. Step 5: Solve for x
    x = 233,723,172,747.66/526,137.28
  6. Step 6: Final answer
    x = 444,224.70

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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.