Home / 998,439.21-1,377,692.13-568,664.55

Finding the Fourth Proportional to 998,439.21, 1,377,692.13 and 568,664.55

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Solution

The fourth proportional to 998,439.21, 1,377,692.13 and 568,664.55 is: 784,669.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,439.21 : 1,377,692.13 = 568,664.55 : x
  2. Step 2: Convert to fraction form
    998,439.21/1,377,692.13 = 568,664.55/x
  3. Step 3: Cross multiply
    998,439.21x = 1,377,692.13 × 568,664.55
  4. Step 4: Simplify right side
    998,439.21x = 783,444,675,144.99
  5. Step 5: Solve for x
    x = 783,444,675,144.99/998,439.21
  6. Step 6: Final answer
    x = 784,669.38

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Double scale
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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.