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Finding the Fourth Proportional to 924.76, 1,383.90 and 718.01

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Solution

The fourth proportional to 924.76, 1,383.90 and 718.01 is: 1,074.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    924.76 : 1,383.90 = 718.01 : x
  2. Step 2: Convert to fraction form
    924.76/1,383.90 = 718.01/x
  3. Step 3: Cross multiply
    924.76x = 1,383.90 × 718.01
  4. Step 4: Simplify right side
    924.76x = 993,654.04
  5. Step 5: Solve for x
    x = 993,654.04/924.76
  6. Step 6: Final answer
    x = 1,074.50

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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.