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Finding the Fourth Proportional to 1,097.80, 1,514.82 and 655.52

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Solution

The fourth proportional to 1,097.80, 1,514.82 and 655.52 is: 904.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,097.80 : 1,514.82 = 655.52 : x
  2. Step 2: Convert to fraction form
    1,097.80/1,514.82 = 655.52/x
  3. Step 3: Cross multiply
    1,097.80x = 1,514.82 × 655.52
  4. Step 4: Simplify right side
    1,097.80x = 992,994.81
  5. Step 5: Solve for x
    x = 992,994.81/1,097.80
  6. Step 6: Final answer
    x = 904.53

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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.