Home / 1,205,195.64-1,663,165.41-661,340.53

Finding the Fourth Proportional to 1,205,195.64, 1,663,165.41 and 661,340.53

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Solution

The fourth proportional to 1,205,195.64, 1,663,165.41 and 661,340.53 is: 912,647.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,195.64 : 1,663,165.41 = 661,340.53 : x
  2. Step 2: Convert to fraction form
    1,205,195.64/1,663,165.41 = 661,340.53/x
  3. Step 3: Cross multiply
    1,205,195.64x = 1,663,165.41 × 661,340.53
  4. Step 4: Simplify right side
    1,205,195.64x = 1,099,918,693,727.07
  5. Step 5: Solve for x
    x = 1,099,918,693,727.07/1,205,195.64
  6. Step 6: Final answer
    x = 912,647.42

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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.