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Finding the Fourth Proportional to 416,281.60, 624,998.40 and 267,443.20

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Solution

The fourth proportional to 416,281.60, 624,998.40 and 267,443.20 is: 401,534.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,281.60 : 624,998.40 = 267,443.20 : x
  2. Step 2: Convert to fraction form
    416,281.60/624,998.40 = 267,443.20/x
  3. Step 3: Cross multiply
    416,281.60x = 624,998.40 × 267,443.20
  4. Step 4: Simplify right side
    416,281.60x = 167,151,572,090.88
  5. Step 5: Solve for x
    x = 167,151,572,090.88/416,281.60
  6. Step 6: Final answer
    x = 401,534.86

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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.