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Finding the Fourth Proportional to 559,712.40, 838,958.48 and 274,837.44

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Solution

The fourth proportional to 559,712.40, 838,958.48 and 274,837.44 is: 411,956.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,712.40 : 838,958.48 = 274,837.44 : x
  2. Step 2: Convert to fraction form
    559,712.40/838,958.48 = 274,837.44/x
  3. Step 3: Cross multiply
    559,712.40x = 838,958.48 × 274,837.44
  4. Step 4: Simplify right side
    559,712.40x = 230,577,200,909.49
  5. Step 5: Solve for x
    x = 230,577,200,909.49/559,712.40
  6. Step 6: Final answer
    x = 411,956.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.