Home / 986,670.40-1,361,868.30-557,201.92

Finding the Fourth Proportional to 986,670.40, 1,361,868.30 and 557,201.92

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Solution

The fourth proportional to 986,670.40, 1,361,868.30 and 557,201.92 is: 769,087.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,670.40 : 1,361,868.30 = 557,201.92 : x
  2. Step 2: Convert to fraction form
    986,670.40/1,361,868.30 = 557,201.92/x
  3. Step 3: Cross multiply
    986,670.40x = 1,361,868.30 × 557,201.92
  4. Step 4: Simplify right side
    986,670.40x = 758,835,631,547.14
  5. Step 5: Solve for x
    x = 758,835,631,547.14/986,670.40
  6. Step 6: Final answer
    x = 769,087.26

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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.