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Finding the Fourth Proportional to 948.97, 1,309.67 and 594.95

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Solution

The fourth proportional to 948.97, 1,309.67 and 594.95 is: 821.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    948.97 : 1,309.67 = 594.95 : x
  2. Step 2: Convert to fraction form
    948.97/1,309.67 = 594.95/x
  3. Step 3: Cross multiply
    948.97x = 1,309.67 × 594.95
  4. Step 4: Simplify right side
    948.97x = 779,178.64
  5. Step 5: Solve for x
    x = 779,178.64/948.97
  6. Step 6: Final answer
    x = 821.08

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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.