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Finding the Fourth Proportional to 416,468.80, 624,518.52 and 191,774.80

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Solution

The fourth proportional to 416,468.80, 624,518.52 and 191,774.80 is: 287,577.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,468.80 : 624,518.52 = 191,774.80 : x
  2. Step 2: Convert to fraction form
    416,468.80/624,518.52 = 191,774.80/x
  3. Step 3: Cross multiply
    416,468.80x = 624,518.52 × 191,774.80
  4. Step 4: Simplify right side
    416,468.80x = 119,766,914,269.30
  5. Step 5: Solve for x
    x = 119,766,914,269.30/416,468.80
  6. Step 6: Final answer
    x = 287,577.16

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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.