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Finding the Fourth Proportional to 1,697.74, 2,546.58 and 465.18

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Solution

The fourth proportional to 1,697.74, 2,546.58 and 465.18 is: 697.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,697.74 : 2,546.58 = 465.18 : x
  2. Step 2: Convert to fraction form
    1,697.74/2,546.58 = 465.18/x
  3. Step 3: Cross multiply
    1,697.74x = 2,546.58 × 465.18
  4. Step 4: Simplify right side
    1,697.74x = 1,184,618.08
  5. Step 5: Solve for x
    x = 1,184,618.08/1,697.74
  6. Step 6: Final answer
    x = 697.76

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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.