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Finding the Fourth Proportional to 339,891.70, 509,983.35 and 173,679.70

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Solution

The fourth proportional to 339,891.70, 509,983.35 and 173,679.70 is: 260,594.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,891.70 : 509,983.35 = 173,679.70 : x
  2. Step 2: Convert to fraction form
    339,891.70/509,983.35 = 173,679.70/x
  3. Step 3: Cross multiply
    339,891.70x = 509,983.35 × 173,679.70
  4. Step 4: Simplify right side
    339,891.70x = 88,573,755,233.00
  5. Step 5: Solve for x
    x = 88,573,755,233.00/339,891.70
  6. Step 6: Final answer
    x = 260,594.05

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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.