Home / 1,205,853.97-1,663,973.53-661,987.57

Finding the Fourth Proportional to 1,205,853.97, 1,663,973.53 and 661,987.57

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Solution

The fourth proportional to 1,205,853.97, 1,663,973.53 and 661,987.57 is: 913,485.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,853.97 : 1,663,973.53 = 661,987.57 : x
  2. Step 2: Convert to fraction form
    1,205,853.97/1,663,973.53 = 661,987.57/x
  3. Step 3: Cross multiply
    1,205,853.97x = 1,663,973.53 × 661,987.57
  4. Step 4: Simplify right side
    1,205,853.97x = 1,101,529,793,669.02
  5. Step 5: Solve for x
    x = 1,101,529,793,669.02/1,205,853.97
  6. Step 6: Final answer
    x = 913,485.23

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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.