Home / 928,145.91-1,391,414.22-359,135.49

Finding the Fourth Proportional to 928,145.91, 1,391,414.22 and 359,135.49

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Solution

The fourth proportional to 928,145.91, 1,391,414.22 and 359,135.49 is: 538,391.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,145.91 : 1,391,414.22 = 359,135.49 : x
  2. Step 2: Convert to fraction form
    928,145.91/1,391,414.22 = 359,135.49/x
  3. Step 3: Cross multiply
    928,145.91x = 1,391,414.22 × 359,135.49
  4. Step 4: Simplify right side
    928,145.91x = 499,706,227,692.67
  5. Step 5: Solve for x
    x = 499,706,227,692.67/928,145.91
  6. Step 6: Final answer
    x = 538,391.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.