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Finding the Fourth Proportional to 296.12, 441.62 and 253.06

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Solution

The fourth proportional to 296.12, 441.62 and 253.06 is: 377.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    296.12 : 441.62 = 253.06 : x
  2. Step 2: Convert to fraction form
    296.12/441.62 = 253.06/x
  3. Step 3: Cross multiply
    296.12x = 441.62 × 253.06
  4. Step 4: Simplify right side
    296.12x = 111,756.36
  5. Step 5: Solve for x
    x = 111,756.36/296.12
  6. Step 6: Final answer
    x = 377.40

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.