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Finding the Fourth Proportional to 295,806.60, 443,709.90 and 260,814.60

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Solution

The fourth proportional to 295,806.60, 443,709.90 and 260,814.60 is: 391,221.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,806.60 : 443,709.90 = 260,814.60 : x
  2. Step 2: Convert to fraction form
    295,806.60/443,709.90 = 260,814.60/x
  3. Step 3: Cross multiply
    295,806.60x = 443,709.90 × 260,814.60
  4. Step 4: Simplify right side
    295,806.60x = 115,726,020,084.54
  5. Step 5: Solve for x
    x = 115,726,020,084.54/295,806.60
  6. Step 6: Final answer
    x = 391,221.90

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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.