Home / 1,205,852.97-1,663,972.15-661,986.57

Finding the Fourth Proportional to 1,205,852.97, 1,663,972.15 and 661,986.57

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Solution

The fourth proportional to 1,205,852.97, 1,663,972.15 and 661,986.57 is: 913,483.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,852.97 : 1,663,972.15 = 661,986.57 : x
  2. Step 2: Convert to fraction form
    1,205,852.97/1,663,972.15 = 661,986.57/x
  3. Step 3: Cross multiply
    1,205,852.97x = 1,663,972.15 × 661,986.57
  4. Step 4: Simplify right side
    1,205,852.97x = 1,101,527,216,154.03
  5. Step 5: Solve for x
    x = 1,101,527,216,154.03/1,205,852.97
  6. Step 6: Final answer
    x = 913,483.85

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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.