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Finding the Fourth Proportional to 999,532.26, 1,491,447.78 and 938,527.08

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Solution

The fourth proportional to 999,532.26, 1,491,447.78 and 938,527.08 is: 1,400,419.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,532.26 : 1,491,447.78 = 938,527.08 : x
  2. Step 2: Convert to fraction form
    999,532.26/1,491,447.78 = 938,527.08/x
  3. Step 3: Cross multiply
    999,532.26x = 1,491,447.78 × 938,527.08
  4. Step 4: Simplify right side
    999,532.26x = 1,399,764,129,935.88
  5. Step 5: Solve for x
    x = 1,399,764,129,935.88/999,532.26
  6. Step 6: Final answer
    x = 1,400,419.16

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.