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Finding the Fourth Proportional to 295,708.60, 443,562.90 and 260,716.60

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Solution

The fourth proportional to 295,708.60, 443,562.90 and 260,716.60 is: 391,074.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,708.60 : 443,562.90 = 260,716.60 : x
  2. Step 2: Convert to fraction form
    295,708.60/443,562.90 = 260,716.60/x
  3. Step 3: Cross multiply
    295,708.60x = 443,562.90 × 260,716.60
  4. Step 4: Simplify right side
    295,708.60x = 115,644,211,174.14
  5. Step 5: Solve for x
    x = 115,644,211,174.14/295,708.60
  6. Step 6: Final answer
    x = 391,074.90

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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.