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Finding the Fourth Proportional to 619,092.72, 854,391.78 and 343,540.71

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Solution

The fourth proportional to 619,092.72, 854,391.78 and 343,540.71 is: 474,110.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,092.72 : 854,391.78 = 343,540.71 : x
  2. Step 2: Convert to fraction form
    619,092.72/854,391.78 = 343,540.71/x
  3. Step 3: Cross multiply
    619,092.72x = 854,391.78 × 343,540.71
  4. Step 4: Simplify right side
    619,092.72x = 293,518,358,719.36
  5. Step 5: Solve for x
    x = 293,518,358,719.36/619,092.72
  6. Step 6: Final answer
    x = 474,110.50

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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.