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Finding the Fourth Proportional to 624,641.20, 937,399.20 and 400,546.60

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Solution

The fourth proportional to 624,641.20, 937,399.20 and 400,546.60 is: 601,100.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,641.20 : 937,399.20 = 400,546.60 : x
  2. Step 2: Convert to fraction form
    624,641.20/937,399.20 = 400,546.60/x
  3. Step 3: Cross multiply
    624,641.20x = 937,399.20 × 400,546.60
  4. Step 4: Simplify right side
    624,641.20x = 375,472,062,402.72
  5. Step 5: Solve for x
    x = 375,472,062,402.72/624,641.20
  6. Step 6: Final answer
    x = 601,100.38

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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.