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Finding the Fourth Proportional to 415,267.60, 623,592.60 and 228,413.20

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Solution

The fourth proportional to 415,267.60, 623,592.60 and 228,413.20 is: 342,999.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,267.60 : 623,592.60 = 228,413.20 : x
  2. Step 2: Convert to fraction form
    415,267.60/623,592.60 = 228,413.20/x
  3. Step 3: Cross multiply
    415,267.60x = 623,592.60 × 228,413.20
  4. Step 4: Simplify right side
    415,267.60x = 142,436,781,262.32
  5. Step 5: Solve for x
    x = 142,436,781,262.32/415,267.60
  6. Step 6: Final answer
    x = 342,999.99

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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.