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Finding the Fourth Proportional to 1,046.19, 1,445.24 and 836.09

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Solution

The fourth proportional to 1,046.19, 1,445.24 and 836.09 is: 1,155.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,046.19 : 1,445.24 = 836.09 : x
  2. Step 2: Convert to fraction form
    1,046.19/1,445.24 = 836.09/x
  3. Step 3: Cross multiply
    1,046.19x = 1,445.24 × 836.09
  4. Step 4: Simplify right side
    1,046.19x = 1,208,352.80
  5. Step 5: Solve for x
    x = 1,208,352.80/1,046.19
  6. Step 6: Final answer
    x = 1,155.00

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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.