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Finding the Fourth Proportional to 1,748.98, 2,623.74 and 709.48

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Solution

The fourth proportional to 1,748.98, 2,623.74 and 709.48 is: 1,064.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,748.98 : 2,623.74 = 709.48 : x
  2. Step 2: Convert to fraction form
    1,748.98/2,623.74 = 709.48/x
  3. Step 3: Cross multiply
    1,748.98x = 2,623.74 × 709.48
  4. Step 4: Simplify right side
    1,748.98x = 1,861,491.06
  5. Step 5: Solve for x
    x = 1,861,491.06/1,748.98
  6. Step 6: Final answer
    x = 1,064.33

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1.5x scale

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.