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Finding the Fourth Proportional to 1,359,968.31, 1,876,745.89 and 748,107.90

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Solution

The fourth proportional to 1,359,968.31, 1,876,745.89 and 748,107.90 is: 1,032,383.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,359,968.31 : 1,876,745.89 = 748,107.90 : x
  2. Step 2: Convert to fraction form
    1,359,968.31/1,876,745.89 = 748,107.90/x
  3. Step 3: Cross multiply
    1,359,968.31x = 1,876,745.89 × 748,107.90
  4. Step 4: Simplify right side
    1,359,968.31x = 1,404,008,426,601.53
  5. Step 5: Solve for x
    x = 1,404,008,426,601.53/1,359,968.31
  6. Step 6: Final answer
    x = 1,032,383.19

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.