Home / 1,328,819.60-1,993,229.40-930,688.40

Finding the Fourth Proportional to 1,328,819.60, 1,993,229.40 and 930,688.40

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Solution

The fourth proportional to 1,328,819.60, 1,993,229.40 and 930,688.40 is: 1,396,032.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,819.60 : 1,993,229.40 = 930,688.40 : x
  2. Step 2: Convert to fraction form
    1,328,819.60/1,993,229.40 = 930,688.40/x
  3. Step 3: Cross multiply
    1,328,819.60x = 1,993,229.40 × 930,688.40
  4. Step 4: Simplify right side
    1,328,819.60x = 1,855,075,481,118.96
  5. Step 5: Solve for x
    x = 1,855,075,481,118.96/1,328,819.60
  6. Step 6: Final answer
    x = 1,396,032.60

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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.