Home / 1,940,515.60-2,912,155.80-819,389.20

Finding the Fourth Proportional to 1,940,515.60, 2,912,155.80 and 819,389.20

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Solution

The fourth proportional to 1,940,515.60, 2,912,155.80 and 819,389.20 is: 1,229,667.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,940,515.60 : 2,912,155.80 = 819,389.20 : x
  2. Step 2: Convert to fraction form
    1,940,515.60/2,912,155.80 = 819,389.20/x
  3. Step 3: Cross multiply
    1,940,515.60x = 2,912,155.80 × 819,389.20
  4. Step 4: Simplify right side
    1,940,515.60x = 2,386,189,011,237.36
  5. Step 5: Solve for x
    x = 2,386,189,011,237.36/1,940,515.60
  6. Step 6: Final answer
    x = 1,229,667.52

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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.