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Finding the Fourth Proportional to 2,162,361.82, 2,983,564.38 and 1,291,027.24

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Solution

The fourth proportional to 2,162,361.82, 2,983,564.38 and 1,291,027.24 is: 1,781,322.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,162,361.82 : 2,983,564.38 = 1,291,027.24 : x
  2. Step 2: Convert to fraction form
    2,162,361.82/2,983,564.38 = 1,291,027.24/x
  3. Step 3: Cross multiply
    2,162,361.82x = 2,983,564.38 × 1,291,027.24
  4. Step 4: Simplify right side
    2,162,361.82x = 3,851,862,886,873.71
  5. Step 5: Solve for x
    x = 3,851,862,886,873.71/2,162,361.82
  6. Step 6: Final answer
    x = 1,781,322.09

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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.