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Finding the Fourth Proportional to 1,116.72, 1,541.16 and 651.04

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Solution

The fourth proportional to 1,116.72, 1,541.16 and 651.04 is: 898.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116.72 : 1,541.16 = 651.04 : x
  2. Step 2: Convert to fraction form
    1,116.72/1,541.16 = 651.04/x
  3. Step 3: Cross multiply
    1,116.72x = 1,541.16 × 651.04
  4. Step 4: Simplify right side
    1,116.72x = 1,003,356.81
  5. Step 5: Solve for x
    x = 1,003,356.81/1,116.72
  6. Step 6: Final answer
    x = 898.49

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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.