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Finding the Fourth Proportional to 971.82, 1,459.47 and 932.67

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Solution

The fourth proportional to 971.82, 1,459.47 and 932.67 is: 1,400.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    971.82 : 1,459.47 = 932.67 : x
  2. Step 2: Convert to fraction form
    971.82/1,459.47 = 932.67/x
  3. Step 3: Cross multiply
    971.82x = 1,459.47 × 932.67
  4. Step 4: Simplify right side
    971.82x = 1,361,203.88
  5. Step 5: Solve for x
    x = 1,361,203.88/971.82
  6. Step 6: Final answer
    x = 1,400.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.