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Finding the Fourth Proportional to 292.48, 435.44 and 291.04

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Solution

The fourth proportional to 292.48, 435.44 and 291.04 is: 433.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    292.48 : 435.44 = 291.04 : x
  2. Step 2: Convert to fraction form
    292.48/435.44 = 291.04/x
  3. Step 3: Cross multiply
    292.48x = 435.44 × 291.04
  4. Step 4: Simplify right side
    292.48x = 126,730.46
  5. Step 5: Solve for x
    x = 126,730.46/292.48
  6. Step 6: Final answer
    x = 433.30

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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.