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Finding the Fourth Proportional to 1,962,856.02, 2,708,752.68 and 1,103,408.76

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Solution

The fourth proportional to 1,962,856.02, 2,708,752.68 and 1,103,408.76 is: 1,522,710.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,962,856.02 : 2,708,752.68 = 1,103,408.76 : x
  2. Step 2: Convert to fraction form
    1,962,856.02/2,708,752.68 = 1,103,408.76/x
  3. Step 3: Cross multiply
    1,962,856.02x = 2,708,752.68 × 1,103,408.76
  4. Step 4: Simplify right side
    1,962,856.02x = 2,988,861,435,785.48
  5. Step 5: Solve for x
    x = 2,988,861,435,785.48/1,962,856.02
  6. Step 6: Final answer
    x = 1,522,710.48

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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.