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Finding the Fourth Proportional to 2,383.04, 3,574.02 and 717.20

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Solution

The fourth proportional to 2,383.04, 3,574.02 and 717.20 is: 1,075.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,383.04 : 3,574.02 = 717.20 : x
  2. Step 2: Convert to fraction form
    2,383.04/3,574.02 = 717.20/x
  3. Step 3: Cross multiply
    2,383.04x = 3,574.02 × 717.20
  4. Step 4: Simplify right side
    2,383.04x = 2,563,287.14
  5. Step 5: Solve for x
    x = 2,563,287.14/2,383.04
  6. Step 6: Final answer
    x = 1,075.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.