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Finding the Fourth Proportional to 1,085.04, 1,498.32 and 736.56

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Solution

The fourth proportional to 1,085.04, 1,498.32 and 736.56 is: 1,017.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085.04 : 1,498.32 = 736.56 : x
  2. Step 2: Convert to fraction form
    1,085.04/1,498.32 = 736.56/x
  3. Step 3: Cross multiply
    1,085.04x = 1,498.32 × 736.56
  4. Step 4: Simplify right side
    1,085.04x = 1,103,602.58
  5. Step 5: Solve for x
    x = 1,103,602.58/1,085.04
  6. Step 6: Final answer
    x = 1,017.11

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Why These Related Problems?

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