Home / 986,827.03-1,362,076.46-643,519.06

Finding the Fourth Proportional to 986,827.03, 1,362,076.46 and 643,519.06

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Solution

The fourth proportional to 986,827.03, 1,362,076.46 and 643,519.06 is: 888,222.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,827.03 : 1,362,076.46 = 643,519.06 : x
  2. Step 2: Convert to fraction form
    986,827.03/1,362,076.46 = 643,519.06/x
  3. Step 3: Cross multiply
    986,827.03x = 1,362,076.46 × 643,519.06
  4. Step 4: Simplify right side
    986,827.03x = 876,522,164,085.52
  5. Step 5: Solve for x
    x = 876,522,164,085.52/986,827.03
  6. Step 6: Final answer
    x = 888,222.69

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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.