Home / 2,145,139.40-3,218,141.10-628,819.40

Finding the Fourth Proportional to 2,145,139.40, 3,218,141.10 and 628,819.40

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Solution

The fourth proportional to 2,145,139.40, 3,218,141.10 and 628,819.40 is: 943,355.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145,139.40 : 3,218,141.10 = 628,819.40 : x
  2. Step 2: Convert to fraction form
    2,145,139.40/3,218,141.10 = 628,819.40/x
  3. Step 3: Cross multiply
    2,145,139.40x = 3,218,141.10 × 628,819.40
  4. Step 4: Simplify right side
    2,145,139.40x = 2,023,629,555,617.34
  5. Step 5: Solve for x
    x = 2,023,629,555,617.34/2,145,139.40
  6. Step 6: Final answer
    x = 943,355.74

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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.