Home / 1,201,540.80-1,800,853.20-695,128.80

Finding the Fourth Proportional to 1,201,540.80, 1,800,853.20 and 695,128.80

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Solution

The fourth proportional to 1,201,540.80, 1,800,853.20 and 695,128.80 is: 1,041,849.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201,540.80 : 1,800,853.20 = 695,128.80 : x
  2. Step 2: Convert to fraction form
    1,201,540.80/1,800,853.20 = 695,128.80/x
  3. Step 3: Cross multiply
    1,201,540.80x = 1,800,853.20 × 695,128.80
  4. Step 4: Simplify right side
    1,201,540.80x = 1,251,824,923,892.16
  5. Step 5: Solve for x
    x = 1,251,824,923,892.16/1,201,540.80
  6. Step 6: Final answer
    x = 1,041,849.70

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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.