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Finding the Fourth Proportional to 292,847.40, 404,125.20 and 165,518.64

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Solution

The fourth proportional to 292,847.40, 404,125.20 and 165,518.64 is: 228,413.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,847.40 : 404,125.20 = 165,518.64 : x
  2. Step 2: Convert to fraction form
    292,847.40/404,125.20 = 165,518.64/x
  3. Step 3: Cross multiply
    292,847.40x = 404,125.20 × 165,518.64
  4. Step 4: Simplify right side
    292,847.40x = 66,890,253,493.73
  5. Step 5: Solve for x
    x = 66,890,253,493.73/292,847.40
  6. Step 6: Final answer
    x = 228,413.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.