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Finding the Fourth Proportional to 1,607.67, 2,218.61 and 944.54

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Solution

The fourth proportional to 1,607.67, 2,218.61 and 944.54 is: 1,303.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,607.67 : 2,218.61 = 944.54 : x
  2. Step 2: Convert to fraction form
    1,607.67/2,218.61 = 944.54/x
  3. Step 3: Cross multiply
    1,607.67x = 2,218.61 × 944.54
  4. Step 4: Simplify right side
    1,607.67x = 2,095,550.07
  5. Step 5: Solve for x
    x = 2,095,550.07/1,607.67
  6. Step 6: Final answer
    x = 1,303.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.