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Finding the Fourth Proportional to 624,880.32, 862,333.11 and 338,400.33

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Solution

The fourth proportional to 624,880.32, 862,333.11 and 338,400.33 is: 466,991.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,880.32 : 862,333.11 = 338,400.33 : x
  2. Step 2: Convert to fraction form
    624,880.32/862,333.11 = 338,400.33/x
  3. Step 3: Cross multiply
    624,880.32x = 862,333.11 × 338,400.33
  4. Step 4: Simplify right side
    624,880.32x = 291,813,808,993.93
  5. Step 5: Solve for x
    x = 291,813,808,993.93/624,880.32
  6. Step 6: Final answer
    x = 466,991.52

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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.