Home / 1,198,044-1,653,112.80-688,651.20

Finding the Fourth Proportional to 1,198,044, 1,653,112.80 and 688,651.20

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Solution

The fourth proportional to 1,198,044, 1,653,112.80 and 688,651.20 is: 950,230.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198,044 : 1,653,112.80 = 688,651.20 : x
  2. Step 2: Convert to fraction form
    1,198,044/1,653,112.80 = 688,651.20/x
  3. Step 3: Cross multiply
    1,198,044x = 1,653,112.80 × 688,651.20
  4. Step 4: Simplify right side
    1,198,044x = 1,138,418,113,455.36
  5. Step 5: Solve for x
    x = 1,138,418,113,455.36/1,198,044
  6. Step 6: Final answer
    x = 950,230.64

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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.