Home / 340,780.25-470,257.54-187,817.96

Finding the Fourth Proportional to 340,780.25, 470,257.54 and 187,817.96

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Solution

The fourth proportional to 340,780.25, 470,257.54 and 187,817.96 is: 259,178.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,780.25 : 470,257.54 = 187,817.96 : x
  2. Step 2: Convert to fraction form
    340,780.25/470,257.54 = 187,817.96/x
  3. Step 3: Cross multiply
    340,780.25x = 470,257.54 × 187,817.96
  4. Step 4: Simplify right side
    340,780.25x = 88,322,811,837.42
  5. Step 5: Solve for x
    x = 88,322,811,837.42/340,780.25
  6. Step 6: Final answer
    x = 259,178.20

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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.