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Finding the Fourth Proportional to 1,177.37, 1,624.13 and 955.92

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Solution

The fourth proportional to 1,177.37, 1,624.13 and 955.92 is: 1,318.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177.37 : 1,624.13 = 955.92 : x
  2. Step 2: Convert to fraction form
    1,177.37/1,624.13 = 955.92/x
  3. Step 3: Cross multiply
    1,177.37x = 1,624.13 × 955.92
  4. Step 4: Simplify right side
    1,177.37x = 1,552,533.57
  5. Step 5: Solve for x
    x = 1,552,533.57/1,177.37
  6. Step 6: Final answer
    x = 1,318.65

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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.