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Finding the Fourth Proportional to 619,373.14, 854,733.53 and 343,773.21

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Solution

The fourth proportional to 619,373.14, 854,733.53 and 343,773.21 is: 474,406.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,373.14 : 854,733.53 = 343,773.21 : x
  2. Step 2: Convert to fraction form
    619,373.14/854,733.53 = 343,773.21/x
  3. Step 3: Cross multiply
    619,373.14x = 854,733.53 × 343,773.21
  4. Step 4: Simplify right side
    619,373.14x = 293,834,489,302.73
  5. Step 5: Solve for x
    x = 293,834,489,302.73/619,373.14
  6. Step 6: Final answer
    x = 474,406.25

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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.