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Finding the Fourth Proportional to 1,294.91, 1,942.35 and 473.41

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Solution

The fourth proportional to 1,294.91, 1,942.35 and 473.41 is: 710.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294.91 : 1,942.35 = 473.41 : x
  2. Step 2: Convert to fraction form
    1,294.91/1,942.35 = 473.41/x
  3. Step 3: Cross multiply
    1,294.91x = 1,942.35 × 473.41
  4. Step 4: Simplify right side
    1,294.91x = 919,527.91
  5. Step 5: Solve for x
    x = 919,527.91/1,294.91
  6. Step 6: Final answer
    x = 710.11

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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.