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Finding the Fourth Proportional to 795.28, 1,097.28 and 574.72

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Solution

The fourth proportional to 795.28, 1,097.28 and 574.72 is: 792.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    795.28 : 1,097.28 = 574.72 : x
  2. Step 2: Convert to fraction form
    795.28/1,097.28 = 574.72/x
  3. Step 3: Cross multiply
    795.28x = 1,097.28 × 574.72
  4. Step 4: Simplify right side
    795.28x = 630,628.76
  5. Step 5: Solve for x
    x = 630,628.76/795.28
  6. Step 6: Final answer
    x = 792.96

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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.