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Finding the Fourth Proportional to 416,548.40, 624,822.60 and 400,218.80

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Solution

The fourth proportional to 416,548.40, 624,822.60 and 400,218.80 is: 600,328.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,548.40 : 624,822.60 = 400,218.80 : x
  2. Step 2: Convert to fraction form
    416,548.40/624,822.60 = 400,218.80/x
  3. Step 3: Cross multiply
    416,548.40x = 624,822.60 × 400,218.80
  4. Step 4: Simplify right side
    416,548.40x = 250,065,751,184.88
  5. Step 5: Solve for x
    x = 250,065,751,184.88/416,548.40
  6. Step 6: Final answer
    x = 600,328.20

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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.