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Finding the Fourth Proportional to 1,740.72, 2,609.33 and 700.53

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Solution

The fourth proportional to 1,740.72, 2,609.33 and 700.53 is: 1,050.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,740.72 : 2,609.33 = 700.53 : x
  2. Step 2: Convert to fraction form
    1,740.72/2,609.33 = 700.53/x
  3. Step 3: Cross multiply
    1,740.72x = 2,609.33 × 700.53
  4. Step 4: Simplify right side
    1,740.72x = 1,827,915.70
  5. Step 5: Solve for x
    x = 1,827,915.70/1,740.72
  6. Step 6: Final answer
    x = 1,050.09

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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.