Home / 579,305.77-799,489.30-321,263.53

Finding the Fourth Proportional to 579,305.77, 799,489.30 and 321,263.53

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Solution

The fourth proportional to 579,305.77, 799,489.30 and 321,263.53 is: 443,369.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,305.77 : 799,489.30 = 321,263.53 : x
  2. Step 2: Convert to fraction form
    579,305.77/799,489.30 = 321,263.53/x
  3. Step 3: Cross multiply
    579,305.77x = 799,489.30 × 321,263.53
  4. Step 4: Simplify right side
    579,305.77x = 256,846,754,715.23
  5. Step 5: Solve for x
    x = 256,846,754,715.23/579,305.77
  6. Step 6: Final answer
    x = 443,369.92

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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.