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Finding the Fourth Proportional to 573.95, 792.08 and 353.13

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Solution

The fourth proportional to 573.95, 792.08 and 353.13 is: 487.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.95 : 792.08 = 353.13 : x
  2. Step 2: Convert to fraction form
    573.95/792.08 = 353.13/x
  3. Step 3: Cross multiply
    573.95x = 792.08 × 353.13
  4. Step 4: Simplify right side
    573.95x = 279,705.44
  5. Step 5: Solve for x
    x = 279,705.44/573.95
  6. Step 6: Final answer
    x = 487.34

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Double scale
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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.