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Finding the Fourth Proportional to 2,982,410,241, 4,472,897,806.80 and 912,149,939.04

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Solution

The fourth proportional to 2,982,410,241, 4,472,897,806.80 and 912,149,939.04 is: 1,368,005,449.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,982,410,241 : 4,472,897,806.80 = 912,149,939.04 : x
  2. Step 2: Convert to fraction form
    2,982,410,241/4,472,897,806.80 = 912,149,939.04/x
  3. Step 3: Cross multiply
    2,982,410,241x = 4,472,897,806.80 × 912,149,939.04
  4. Step 4: Simplify right side
    2,982,410,241x = 4,079,953,461,804,769,792
  5. Step 5: Solve for x
    x = 4,079,953,461,804,769,792/2,982,410,241
  6. Step 6: Final answer
    x = 1,368,005,449.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.