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Finding the Fourth Proportional to 1,364.66, 2,047.25 and 624.32

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Solution

The fourth proportional to 1,364.66, 2,047.25 and 624.32 is: 936.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,364.66 : 2,047.25 = 624.32 : x
  2. Step 2: Convert to fraction form
    1,364.66/2,047.25 = 624.32/x
  3. Step 3: Cross multiply
    1,364.66x = 2,047.25 × 624.32
  4. Step 4: Simplify right side
    1,364.66x = 1,278,125.76
  5. Step 5: Solve for x
    x = 1,278,125.76/1,364.66
  6. Step 6: Final answer
    x = 936.59

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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.