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Finding the Fourth Proportional to 339,780.64, 509,683.92 and 173,374.24

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Solution

The fourth proportional to 339,780.64, 509,683.92 and 173,374.24 is: 260,067.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,780.64 : 509,683.92 = 173,374.24 : x
  2. Step 2: Convert to fraction form
    339,780.64/509,683.92 = 173,374.24/x
  3. Step 3: Cross multiply
    339,780.64x = 509,683.92 × 173,374.24
  4. Step 4: Simplify right side
    339,780.64x = 88,366,062,270.22
  5. Step 5: Solve for x
    x = 88,366,062,270.22/339,780.64
  6. Step 6: Final answer
    x = 260,067.97

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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.