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Finding the Fourth Proportional to 295,700.60, 442,894.80 and 228,778.40

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Solution

The fourth proportional to 295,700.60, 442,894.80 and 228,778.40 is: 342,659.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,700.60 : 442,894.80 = 228,778.40 : x
  2. Step 2: Convert to fraction form
    295,700.60/442,894.80 = 228,778.40/x
  3. Step 3: Cross multiply
    295,700.60x = 442,894.80 × 228,778.40
  4. Step 4: Simplify right side
    295,700.60x = 101,324,763,712.32
  5. Step 5: Solve for x
    x = 101,324,763,712.32/295,700.60
  6. Step 6: Final answer
    x = 342,659.99

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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.