Home / 1,205,849.97-1,663,968.02-661,983.57

Finding the Fourth Proportional to 1,205,849.97, 1,663,968.02 and 661,983.57

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Solution

The fourth proportional to 1,205,849.97, 1,663,968.02 and 661,983.57 is: 913,479.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,849.97 : 1,663,968.02 = 661,983.57 : x
  2. Step 2: Convert to fraction form
    1,205,849.97/1,663,968.02 = 661,983.57/x
  3. Step 3: Cross multiply
    1,205,849.97x = 1,663,968.02 × 661,983.57
  4. Step 4: Simplify right side
    1,205,849.97x = 1,101,519,486,935.51
  5. Step 5: Solve for x
    x = 1,101,519,486,935.51/1,205,849.97
  6. Step 6: Final answer
    x = 913,479.72

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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.