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Finding the Fourth Proportional to 624,683.20, 862,052.40 and 338,200.96

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Solution

The fourth proportional to 624,683.20, 862,052.40 and 338,200.96 is: 466,711.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,683.20 : 862,052.40 = 338,200.96 : x
  2. Step 2: Convert to fraction form
    624,683.20/862,052.40 = 338,200.96/x
  3. Step 3: Cross multiply
    624,683.20x = 862,052.40 × 338,200.96
  4. Step 4: Simplify right side
    624,683.20x = 291,546,949,250.30
  5. Step 5: Solve for x
    x = 291,546,949,250.30/624,683.20
  6. Step 6: Final answer
    x = 466,711.69

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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.