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Finding the Fourth Proportional to 283,757.60, 425,636.40 and 238,138.40

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Solution

The fourth proportional to 283,757.60, 425,636.40 and 238,138.40 is: 357,207.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,757.60 : 425,636.40 = 238,138.40 : x
  2. Step 2: Convert to fraction form
    283,757.60/425,636.40 = 238,138.40/x
  3. Step 3: Cross multiply
    283,757.60x = 425,636.40 × 238,138.40
  4. Step 4: Simplify right side
    283,757.60x = 101,360,371,277.76
  5. Step 5: Solve for x
    x = 101,360,371,277.76/283,757.60
  6. Step 6: Final answer
    x = 357,207.60

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