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Finding the Fourth Proportional to 1,295.01, 1,942.47 and 473.31

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Solution

The fourth proportional to 1,295.01, 1,942.47 and 473.31 is: 709.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295.01 : 1,942.47 = 473.31 : x
  2. Step 2: Convert to fraction form
    1,295.01/1,942.47 = 473.31/x
  3. Step 3: Cross multiply
    1,295.01x = 1,942.47 × 473.31
  4. Step 4: Simplify right side
    1,295.01x = 919,390.48
  5. Step 5: Solve for x
    x = 919,390.48/1,295.01
  6. Step 6: Final answer
    x = 709.95

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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.