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Finding the Fourth Proportional to 703,993.25, 971,153.07 and 445,434.49

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Solution

The fourth proportional to 703,993.25, 971,153.07 and 445,434.49 is: 614,473.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,993.25 : 971,153.07 = 445,434.49 : x
  2. Step 2: Convert to fraction form
    703,993.25/971,153.07 = 445,434.49/x
  3. Step 3: Cross multiply
    703,993.25x = 971,153.07 × 445,434.49
  4. Step 4: Simplify right side
    703,993.25x = 432,585,073,243.73
  5. Step 5: Solve for x
    x = 432,585,073,243.73/703,993.25
  6. Step 6: Final answer
    x = 614,473.33

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1.5x scale

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.