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Finding the Fourth Proportional to 1,965,730.17, 2,713,544.64 and 1,321,524.02

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Solution

The fourth proportional to 1,965,730.17, 2,713,544.64 and 1,321,524.02 is: 1,824,265.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,965,730.17 : 2,713,544.64 = 1,321,524.02 : x
  2. Step 2: Convert to fraction form
    1,965,730.17/2,713,544.64 = 1,321,524.02/x
  3. Step 3: Cross multiply
    1,965,730.17x = 2,713,544.64 × 1,321,524.02
  4. Step 4: Simplify right side
    1,965,730.17x = 3,586,014,407,534.53
  5. Step 5: Solve for x
    x = 3,586,014,407,534.53/1,965,730.17
  6. Step 6: Final answer
    x = 1,824,265.84

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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.