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Finding the Fourth Proportional to 794.64, 1,096.56 and 458.58

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Solution

The fourth proportional to 794.64, 1,096.56 and 458.58 is: 632.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    794.64 : 1,096.56 = 458.58 : x
  2. Step 2: Convert to fraction form
    794.64/1,096.56 = 458.58/x
  3. Step 3: Cross multiply
    794.64x = 1,096.56 × 458.58
  4. Step 4: Simplify right side
    794.64x = 502,860.48
  5. Step 5: Solve for x
    x = 502,860.48/794.64
  6. Step 6: Final answer
    x = 632.82

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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.