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Finding the Fourth Proportional to 1,576,989, 2,176,244.82 and 861,597

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Solution

The fourth proportional to 1,576,989, 2,176,244.82 and 861,597 is: 1,189,003.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,576,989 : 2,176,244.82 = 861,597 : x
  2. Step 2: Convert to fraction form
    1,576,989/2,176,244.82 = 861,597/x
  3. Step 3: Cross multiply
    1,576,989x = 2,176,244.82 × 861,597
  4. Step 4: Simplify right side
    1,576,989x = 1,875,046,008,177.54
  5. Step 5: Solve for x
    x = 1,875,046,008,177.54/1,576,989
  6. Step 6: Final answer
    x = 1,189,003.86

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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.