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Finding the Fourth Proportional to 1,017.04, 1,403.50 and 574.88

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Solution

The fourth proportional to 1,017.04, 1,403.50 and 574.88 is: 793.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,017.04 : 1,403.50 = 574.88 : x
  2. Step 2: Convert to fraction form
    1,017.04/1,403.50 = 574.88/x
  3. Step 3: Cross multiply
    1,017.04x = 1,403.50 × 574.88
  4. Step 4: Simplify right side
    1,017.04x = 806,844.08
  5. Step 5: Solve for x
    x = 806,844.08/1,017.04
  6. Step 6: Final answer
    x = 793.33

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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.