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Finding the Fourth Proportional to 619,309.94, 854,654.90 and 343,673.55

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Solution

The fourth proportional to 619,309.94, 854,654.90 and 343,673.55 is: 474,273.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,309.94 : 854,654.90 = 343,673.55 : x
  2. Step 2: Convert to fraction form
    619,309.94/854,654.90 = 343,673.55/x
  3. Step 3: Cross multiply
    619,309.94x = 854,654.90 × 343,673.55
  4. Step 4: Simplify right side
    619,309.94x = 293,722,281,789.53
  5. Step 5: Solve for x
    x = 293,722,281,789.53/619,309.94
  6. Step 6: Final answer
    x = 474,273.49

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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.