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Finding the Fourth Proportional to 1,546.59, 2,319.75 and 622.65

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Solution

The fourth proportional to 1,546.59, 2,319.75 and 622.65 is: 933.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,546.59 : 2,319.75 = 622.65 : x
  2. Step 2: Convert to fraction form
    1,546.59/2,319.75 = 622.65/x
  3. Step 3: Cross multiply
    1,546.59x = 2,319.75 × 622.65
  4. Step 4: Simplify right side
    1,546.59x = 1,444,392.34
  5. Step 5: Solve for x
    x = 1,444,392.34/1,546.59
  6. Step 6: Final answer
    x = 933.92

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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.