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Finding the Fourth Proportional to 416,092.80, 624,139.20 and 367,881.60

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Solution

The fourth proportional to 416,092.80, 624,139.20 and 367,881.60 is: 551,822.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,092.80 : 624,139.20 = 367,881.60 : x
  2. Step 2: Convert to fraction form
    416,092.80/624,139.20 = 367,881.60/x
  3. Step 3: Cross multiply
    416,092.80x = 624,139.20 × 367,881.60
  4. Step 4: Simplify right side
    416,092.80x = 229,609,327,518.72
  5. Step 5: Solve for x
    x = 229,609,327,518.72/416,092.80
  6. Step 6: Final answer
    x = 551,822.40

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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.