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Finding the Fourth Proportional to 340,805.68, 470,332.39 and 187,843.66

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Solution

The fourth proportional to 340,805.68, 470,332.39 and 187,843.66 is: 259,235.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,805.68 : 470,332.39 = 187,843.66 : x
  2. Step 2: Convert to fraction form
    340,805.68/470,332.39 = 187,843.66/x
  3. Step 3: Cross multiply
    340,805.68x = 470,332.39 × 187,843.66
  4. Step 4: Simplify right side
    340,805.68x = 88,348,957,554.15
  5. Step 5: Solve for x
    x = 88,348,957,554.15/340,805.68
  6. Step 6: Final answer
    x = 259,235.58

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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.