Home / 1,866,859.20-2,800,288.80-668,820.60

Finding the Fourth Proportional to 1,866,859.20, 2,800,288.80 and 668,820.60

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Solution

The fourth proportional to 1,866,859.20, 2,800,288.80 and 668,820.60 is: 1,003,230.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,866,859.20 : 2,800,288.80 = 668,820.60 : x
  2. Step 2: Convert to fraction form
    1,866,859.20/2,800,288.80 = 668,820.60/x
  3. Step 3: Cross multiply
    1,866,859.20x = 2,800,288.80 × 668,820.60
  4. Step 4: Simplify right side
    1,866,859.20x = 1,872,890,835,389.28
  5. Step 5: Solve for x
    x = 1,872,890,835,389.28/1,866,859.20
  6. Step 6: Final answer
    x = 1,003,230.90

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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.