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Finding the Fourth Proportional to 339,078.60, 508,617.90 and 197,166.60

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Solution

The fourth proportional to 339,078.60, 508,617.90 and 197,166.60 is: 295,749.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,078.60 : 508,617.90 = 197,166.60 : x
  2. Step 2: Convert to fraction form
    339,078.60/508,617.90 = 197,166.60/x
  3. Step 3: Cross multiply
    339,078.60x = 508,617.90 × 197,166.60
  4. Step 4: Simplify right side
    339,078.60x = 100,282,462,042.14
  5. Step 5: Solve for x
    x = 100,282,462,042.14/339,078.60
  6. Step 6: Final answer
    x = 295,749.90

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Similar ratio
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1.5x scale

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.