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Finding the Fourth Proportional to 667,796.60, 1,001,252.10 and 368,420.60

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Solution

The fourth proportional to 667,796.60, 1,001,252.10 and 368,420.60 is: 552,386.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,796.60 : 1,001,252.10 = 368,420.60 : x
  2. Step 2: Convert to fraction form
    667,796.60/1,001,252.10 = 368,420.60/x
  3. Step 3: Cross multiply
    667,796.60x = 1,001,252.10 × 368,420.60
  4. Step 4: Simplify right side
    667,796.60x = 368,881,899,433.26
  5. Step 5: Solve for x
    x = 368,881,899,433.26/667,796.60
  6. Step 6: Final answer
    x = 552,386.61

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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.