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Finding the Fourth Proportional to 619,187.41, 854,484.81 and 347,249.47

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Solution

The fourth proportional to 619,187.41, 854,484.81 and 347,249.47 is: 479,207.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,187.41 : 854,484.81 = 347,249.47 : x
  2. Step 2: Convert to fraction form
    619,187.41/854,484.81 = 347,249.47/x
  3. Step 3: Cross multiply
    619,187.41x = 854,484.81 × 347,249.47
  4. Step 4: Simplify right side
    619,187.41x = 296,719,393,123.13
  5. Step 5: Solve for x
    x = 296,719,393,123.13/619,187.41
  6. Step 6: Final answer
    x = 479,207.73

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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.