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Finding the Fourth Proportional to 929.04, 1,391.84 and 466.28

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Solution

The fourth proportional to 929.04, 1,391.84 and 466.28 is: 698.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    929.04 : 1,391.84 = 466.28 : x
  2. Step 2: Convert to fraction form
    929.04/1,391.84 = 466.28/x
  3. Step 3: Cross multiply
    929.04x = 1,391.84 × 466.28
  4. Step 4: Simplify right side
    929.04x = 648,987.16
  5. Step 5: Solve for x
    x = 648,987.16/929.04
  6. Step 6: Final answer
    x = 698.56

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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.