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Finding the Fourth Proportional to 962.37, 1,440.95 and 713.76

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Solution

The fourth proportional to 962.37, 1,440.95 and 713.76 is: 1,068.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    962.37 : 1,440.95 = 713.76 : x
  2. Step 2: Convert to fraction form
    962.37/1,440.95 = 713.76/x
  3. Step 3: Cross multiply
    962.37x = 1,440.95 × 713.76
  4. Step 4: Simplify right side
    962.37x = 1,028,488.90
  5. Step 5: Solve for x
    x = 1,028,488.90/962.37
  6. Step 6: Final answer
    x = 1,068.70

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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.