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Finding the Fourth Proportional to 1,997,963.64, 2,989,572.66 and 1,199,731.32

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Solution

The fourth proportional to 1,997,963.64, 2,989,572.66 and 1,199,731.32 is: 1,795,169.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,997,963.64 : 2,989,572.66 = 1,199,731.32 : x
  2. Step 2: Convert to fraction form
    1,997,963.64/2,989,572.66 = 1,199,731.32/x
  3. Step 3: Cross multiply
    1,997,963.64x = 2,989,572.66 × 1,199,731.32
  4. Step 4: Simplify right side
    1,997,963.64x = 3,586,683,953,617.71
  5. Step 5: Solve for x
    x = 3,586,683,953,617.71/1,997,963.64
  6. Step 6: Final answer
    x = 1,795,169.78

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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.