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Finding the Fourth Proportional to 624,767.60, 937,151.40 and 388,571.60

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Solution

The fourth proportional to 624,767.60, 937,151.40 and 388,571.60 is: 582,857.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,767.60 : 937,151.40 = 388,571.60 : x
  2. Step 2: Convert to fraction form
    624,767.60/937,151.40 = 388,571.60/x
  3. Step 3: Cross multiply
    624,767.60x = 937,151.40 × 388,571.60
  4. Step 4: Simplify right side
    624,767.60x = 364,150,418,940.24
  5. Step 5: Solve for x
    x = 364,150,418,940.24/624,767.60
  6. Step 6: Final answer
    x = 582,857.40

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Similar ratio
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1.5x scale

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.