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Finding the Fourth Proportional to 567.96, 783.88 and 411.12

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Solution

The fourth proportional to 567.96, 783.88 and 411.12 is: 567.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    567.96 : 783.88 = 411.12 : x
  2. Step 2: Convert to fraction form
    567.96/783.88 = 411.12/x
  3. Step 3: Cross multiply
    567.96x = 783.88 × 411.12
  4. Step 4: Simplify right side
    567.96x = 322,268.75
  5. Step 5: Solve for x
    x = 322,268.75/567.96
  6. Step 6: Final answer
    x = 567.41

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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.