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Finding the Fourth Proportional to 619,427.01, 854,795.82 and 347,489.97

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Solution

The fourth proportional to 619,427.01, 854,795.82 and 347,489.97 is: 479,528.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,427.01 : 854,795.82 = 347,489.97 : x
  2. Step 2: Convert to fraction form
    619,427.01/854,795.82 = 347,489.97/x
  3. Step 3: Cross multiply
    619,427.01x = 854,795.82 × 347,489.97
  4. Step 4: Simplify right side
    619,427.01x = 297,032,973,847.93
  5. Step 5: Solve for x
    x = 297,032,973,847.93/619,427.01
  6. Step 6: Final answer
    x = 479,528.61

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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.