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Finding the Fourth Proportional to 1,955,717.64, 2,932,839.16 and 818,558.64

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Solution

The fourth proportional to 1,955,717.64, 2,932,839.16 and 818,558.64 is: 1,227,529.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,955,717.64 : 2,932,839.16 = 818,558.64 : x
  2. Step 2: Convert to fraction form
    1,955,717.64/2,932,839.16 = 818,558.64/x
  3. Step 3: Cross multiply
    1,955,717.64x = 2,932,839.16 × 818,558.64
  4. Step 4: Simplify right side
    1,955,717.64x = 2,400,700,832,101.95
  5. Step 5: Solve for x
    x = 2,400,700,832,101.95/1,955,717.64
  6. Step 6: Final answer
    x = 1,227,529.36

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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.