Home / 1,186,661.18-1,637,600.28-642,796.97

Finding the Fourth Proportional to 1,186,661.18, 1,637,600.28 and 642,796.97

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Solution

The fourth proportional to 1,186,661.18, 1,637,600.28 and 642,796.97 is: 887,064.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,661.18 : 1,637,600.28 = 642,796.97 : x
  2. Step 2: Convert to fraction form
    1,186,661.18/1,637,600.28 = 642,796.97/x
  3. Step 3: Cross multiply
    1,186,661.18x = 1,637,600.28 × 642,796.97
  4. Step 4: Simplify right side
    1,186,661.18x = 1,052,644,489,867.15
  5. Step 5: Solve for x
    x = 1,052,644,489,867.15/1,186,661.18
  6. Step 6: Final answer
    x = 887,064.07

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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.