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Finding the Fourth Proportional to 765,654, 1,148,490.72 and 267,018

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Solution

The fourth proportional to 765,654, 1,148,490.72 and 267,018 is: 400,530.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,654 : 1,148,490.72 = 267,018 : x
  2. Step 2: Convert to fraction form
    765,654/1,148,490.72 = 267,018/x
  3. Step 3: Cross multiply
    765,654x = 1,148,490.72 × 267,018
  4. Step 4: Simplify right side
    765,654x = 306,667,695,072.96
  5. Step 5: Solve for x
    x = 306,667,695,072.96/765,654
  6. Step 6: Final answer
    x = 400,530.39

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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.