Home / 525,981.05-725,682.92-321,819.13

Finding the Fourth Proportional to 525,981.05, 725,682.92 and 321,819.13

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Solution

The fourth proportional to 525,981.05, 725,682.92 and 321,819.13 is: 444,005.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,981.05 : 725,682.92 = 321,819.13 : x
  2. Step 2: Convert to fraction form
    525,981.05/725,682.92 = 321,819.13/x
  3. Step 3: Cross multiply
    525,981.05x = 725,682.92 × 321,819.13
  4. Step 4: Simplify right side
    525,981.05x = 233,538,645,970.26
  5. Step 5: Solve for x
    x = 233,538,645,970.26/525,981.05
  6. Step 6: Final answer
    x = 444,005.82

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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.