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Finding the Fourth Proportional to 862,451.60, 1,293,677.40 and 823,744.40

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Solution

The fourth proportional to 862,451.60, 1,293,677.40 and 823,744.40 is: 1,235,616.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,451.60 : 1,293,677.40 = 823,744.40 : x
  2. Step 2: Convert to fraction form
    862,451.60/1,293,677.40 = 823,744.40/x
  3. Step 3: Cross multiply
    862,451.60x = 1,293,677.40 × 823,744.40
  4. Step 4: Simplify right side
    862,451.60x = 1,065,659,513,656.56
  5. Step 5: Solve for x
    x = 1,065,659,513,656.56/862,451.60
  6. Step 6: Final answer
    x = 1,235,616.60

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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.