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Finding the Fourth Proportional to 966.13, 1,332.25 and 573.08

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Solution

The fourth proportional to 966.13, 1,332.25 and 573.08 is: 790.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    966.13 : 1,332.25 = 573.08 : x
  2. Step 2: Convert to fraction form
    966.13/1,332.25 = 573.08/x
  3. Step 3: Cross multiply
    966.13x = 1,332.25 × 573.08
  4. Step 4: Simplify right side
    966.13x = 763,477.74
  5. Step 5: Solve for x
    x = 763,477.74/966.13
  6. Step 6: Final answer
    x = 790.25

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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.