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Finding the Fourth Proportional to 209,260.70, 313,891.05 and 209,260.70

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Solution

The fourth proportional to 209,260.70, 313,891.05 and 209,260.70 is: 313,891.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,260.70 : 313,891.05 = 209,260.70 : x
  2. Step 2: Convert to fraction form
    209,260.70/313,891.05 = 209,260.70/x
  3. Step 3: Cross multiply
    209,260.70x = 313,891.05 × 209,260.70
  4. Step 4: Simplify right side
    209,260.70x = 65,685,060,846.74
  5. Step 5: Solve for x
    x = 65,685,060,846.74/209,260.70
  6. Step 6: Final answer
    x = 313,891.05

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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.