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Finding the Fourth Proportional to 624,958.12, 862,441.95 and 338,478.22

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Solution

The fourth proportional to 624,958.12, 862,441.95 and 338,478.22 is: 467,099.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,958.12 : 862,441.95 = 338,478.22 : x
  2. Step 2: Convert to fraction form
    624,958.12/862,441.95 = 338,478.22/x
  3. Step 3: Cross multiply
    624,958.12x = 862,441.95 × 338,478.22
  4. Step 4: Simplify right side
    624,958.12x = 291,917,816,089.33
  5. Step 5: Solve for x
    x = 291,917,816,089.33/624,958.12
  6. Step 6: Final answer
    x = 467,099.81

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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.