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Finding the Fourth Proportional to 1,484.84, 2,226.51 and 704.68

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Solution

The fourth proportional to 1,484.84, 2,226.51 and 704.68 is: 1,056.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,484.84 : 2,226.51 = 704.68 : x
  2. Step 2: Convert to fraction form
    1,484.84/2,226.51 = 704.68/x
  3. Step 3: Cross multiply
    1,484.84x = 2,226.51 × 704.68
  4. Step 4: Simplify right side
    1,484.84x = 1,568,971.50
  5. Step 5: Solve for x
    x = 1,568,971.50/1,484.84
  6. Step 6: Final answer
    x = 1,056.66

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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.