Home / 1,928,765.80-2,661,760.02-1,069,406.20

Finding the Fourth Proportional to 1,928,765.80, 2,661,760.02 and 1,069,406.20

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Solution

The fourth proportional to 1,928,765.80, 2,661,760.02 and 1,069,406.20 is: 1,475,815.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,928,765.80 : 2,661,760.02 = 1,069,406.20 : x
  2. Step 2: Convert to fraction form
    1,928,765.80/2,661,760.02 = 1,069,406.20/x
  3. Step 3: Cross multiply
    1,928,765.80x = 2,661,760.02 × 1,069,406.20
  4. Step 4: Simplify right side
    1,928,765.80x = 2,846,502,668,300.12
  5. Step 5: Solve for x
    x = 2,846,502,668,300.12/1,928,765.80
  6. Step 6: Final answer
    x = 1,475,815.61

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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.