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Finding the Fourth Proportional to 929.94, 1,395.69 and 467.58

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Solution

The fourth proportional to 929.94, 1,395.69 and 467.58 is: 701.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    929.94 : 1,395.69 = 467.58 : x
  2. Step 2: Convert to fraction form
    929.94/1,395.69 = 467.58/x
  3. Step 3: Cross multiply
    929.94x = 1,395.69 × 467.58
  4. Step 4: Simplify right side
    929.94x = 652,596.73
  5. Step 5: Solve for x
    x = 652,596.73/929.94
  6. Step 6: Final answer
    x = 701.76

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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.