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Finding the Fourth Proportional to 984,854.80, 1,477,282.20 and 843,137.20

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Solution

The fourth proportional to 984,854.80, 1,477,282.20 and 843,137.20 is: 1,264,705.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,854.80 : 1,477,282.20 = 843,137.20 : x
  2. Step 2: Convert to fraction form
    984,854.80/1,477,282.20 = 843,137.20/x
  3. Step 3: Cross multiply
    984,854.80x = 1,477,282.20 × 843,137.20
  4. Step 4: Simplify right side
    984,854.80x = 1,245,551,577,717.84
  5. Step 5: Solve for x
    x = 1,245,551,577,717.84/984,854.80
  6. Step 6: Final answer
    x = 1,264,705.80

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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.