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Finding the Fourth Proportional to 985.04, 1,477.56 and 244.65

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Solution

The fourth proportional to 985.04, 1,477.56 and 244.65 is: 366.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    985.04 : 1,477.56 = 244.65 : x
  2. Step 2: Convert to fraction form
    985.04/1,477.56 = 244.65/x
  3. Step 3: Cross multiply
    985.04x = 1,477.56 × 244.65
  4. Step 4: Simplify right side
    985.04x = 361,485.05
  5. Step 5: Solve for x
    x = 361,485.05/985.04
  6. Step 6: Final answer
    x = 366.98

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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.