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Finding the Fourth Proportional to 340,769.87, 470,260.22 and 187,808.22

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Solution

The fourth proportional to 340,769.87, 470,260.22 and 187,808.22 is: 259,174.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,769.87 : 470,260.22 = 187,808.22 : x
  2. Step 2: Convert to fraction form
    340,769.87/470,260.22 = 187,808.22/x
  3. Step 3: Cross multiply
    340,769.87x = 470,260.22 × 187,808.22
  4. Step 4: Simplify right side
    340,769.87x = 88,318,733,915.97
  5. Step 5: Solve for x
    x = 88,318,733,915.97/340,769.87
  6. Step 6: Final answer
    x = 259,174.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.