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Finding the Fourth Proportional to 624,171.32, 862,238.22 and 496,683.80

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Solution

The fourth proportional to 624,171.32, 862,238.22 and 496,683.80 is: 686,125.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,171.32 : 862,238.22 = 496,683.80 : x
  2. Step 2: Convert to fraction form
    624,171.32/862,238.22 = 496,683.80/x
  3. Step 3: Cross multiply
    624,171.32x = 862,238.22 × 496,683.80
  4. Step 4: Simplify right side
    624,171.32x = 428,259,755,614.84
  5. Step 5: Solve for x
    x = 428,259,755,614.84/624,171.32
  6. Step 6: Final answer
    x = 686,125.33

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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.