Home / 1,205,209.96-1,663,185.16-661,354.84

Finding the Fourth Proportional to 1,205,209.96, 1,663,185.16 and 661,354.84

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Solution

The fourth proportional to 1,205,209.96, 1,663,185.16 and 661,354.84 is: 912,667.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,209.96 : 1,663,185.16 = 661,354.84 : x
  2. Step 2: Convert to fraction form
    1,205,209.96/1,663,185.16 = 661,354.84/x
  3. Step 3: Cross multiply
    1,205,209.96x = 1,663,185.16 × 661,354.84
  4. Step 4: Simplify right side
    1,205,209.96x = 1,099,955,555,382.17
  5. Step 5: Solve for x
    x = 1,099,955,555,382.17/1,205,209.96
  6. Step 6: Final answer
    x = 912,667.16

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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.