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Finding the Fourth Proportional to 3,576,551.76, 4,935,573 and 1,966,919.76

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Solution

The fourth proportional to 3,576,551.76, 4,935,573 and 1,966,919.76 is: 2,714,311.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,576,551.76 : 4,935,573 = 1,966,919.76 : x
  2. Step 2: Convert to fraction form
    3,576,551.76/4,935,573 = 1,966,919.76/x
  3. Step 3: Cross multiply
    3,576,551.76x = 4,935,573 × 1,966,919.76
  4. Step 4: Simplify right side
    3,576,551.76x = 9,707,876,060,622.48
  5. Step 5: Solve for x
    x = 9,707,876,060,622.48/3,576,551.76
  6. Step 6: Final answer
    x = 2,714,311.64

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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.