Home / 1,613,309.64-2,419,965.24-665,638.80

Finding the Fourth Proportional to 1,613,309.64, 2,419,965.24 and 665,638.80

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Solution

The fourth proportional to 1,613,309.64, 2,419,965.24 and 665,638.80 is: 998,458.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,613,309.64 : 2,419,965.24 = 665,638.80 : x
  2. Step 2: Convert to fraction form
    1,613,309.64/2,419,965.24 = 665,638.80/x
  3. Step 3: Cross multiply
    1,613,309.64x = 2,419,965.24 × 665,638.80
  4. Step 4: Simplify right side
    1,613,309.64x = 1,610,822,758,395.31
  5. Step 5: Solve for x
    x = 1,610,822,758,395.31/1,613,309.64
  6. Step 6: Final answer
    x = 998,458.52

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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.