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Finding the Fourth Proportional to 1,411,742.72, 1,948,198.56 and 767,150.72

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Solution

The fourth proportional to 1,411,742.72, 1,948,198.56 and 767,150.72 is: 1,058,664.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,411,742.72 : 1,948,198.56 = 767,150.72 : x
  2. Step 2: Convert to fraction form
    1,411,742.72/1,948,198.56 = 767,150.72/x
  3. Step 3: Cross multiply
    1,411,742.72x = 1,948,198.56 × 767,150.72
  4. Step 4: Simplify right side
    1,411,742.72x = 1,494,561,928,006.96
  5. Step 5: Solve for x
    x = 1,494,561,928,006.96/1,411,742.72
  6. Step 6: Final answer
    x = 1,058,664.52

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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.