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Finding the Fourth Proportional to 956.01, 1,318.70 and 562.96

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Solution

The fourth proportional to 956.01, 1,318.70 and 562.96 is: 776.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    956.01 : 1,318.70 = 562.96 : x
  2. Step 2: Convert to fraction form
    956.01/1,318.70 = 562.96/x
  3. Step 3: Cross multiply
    956.01x = 1,318.70 × 562.96
  4. Step 4: Simplify right side
    956.01x = 742,365.94
  5. Step 5: Solve for x
    x = 742,365.94/956.01
  6. Step 6: Final answer
    x = 776.53

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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.