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Finding the Fourth Proportional to 1,097.71, 1,514.83 and 655.53

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Solution

The fourth proportional to 1,097.71, 1,514.83 and 655.53 is: 904.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,097.71 : 1,514.83 = 655.53 : x
  2. Step 2: Convert to fraction form
    1,097.71/1,514.83 = 655.53/x
  3. Step 3: Cross multiply
    1,097.71x = 1,514.83 × 655.53
  4. Step 4: Simplify right side
    1,097.71x = 993,018.66
  5. Step 5: Solve for x
    x = 993,018.66/1,097.71
  6. Step 6: Final answer
    x = 904.63

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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.