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Finding the Fourth Proportional to 977.06, 1,465.57 and 246.62

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Solution

The fourth proportional to 977.06, 1,465.57 and 246.62 is: 369.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    977.06 : 1,465.57 = 246.62 : x
  2. Step 2: Convert to fraction form
    977.06/1,465.57 = 246.62/x
  3. Step 3: Cross multiply
    977.06x = 1,465.57 × 246.62
  4. Step 4: Simplify right side
    977.06x = 361,438.87
  5. Step 5: Solve for x
    x = 361,438.87/977.06
  6. Step 6: Final answer
    x = 369.92

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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.