Home / 1,692,299.87-2,335,360.11-917,928.78

Finding the Fourth Proportional to 1,692,299.87, 2,335,360.11 and 917,928.78

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Solution

The fourth proportional to 1,692,299.87, 2,335,360.11 and 917,928.78 is: 1,266,734.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,692,299.87 : 2,335,360.11 = 917,928.78 : x
  2. Step 2: Convert to fraction form
    1,692,299.87/2,335,360.11 = 917,928.78/x
  3. Step 3: Cross multiply
    1,692,299.87x = 2,335,360.11 × 917,928.78
  4. Step 4: Simplify right side
    1,692,299.87x = 2,143,694,240,366.52
  5. Step 5: Solve for x
    x = 2,143,694,240,366.52/1,692,299.87
  6. Step 6: Final answer
    x = 1,266,734.27

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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.