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Finding the Fourth Proportional to 474,751.40, 712,530.30 and 194,469.80

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Solution

The fourth proportional to 474,751.40, 712,530.30 and 194,469.80 is: 291,869.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,751.40 : 712,530.30 = 194,469.80 : x
  2. Step 2: Convert to fraction form
    474,751.40/712,530.30 = 194,469.80/x
  3. Step 3: Cross multiply
    474,751.40x = 712,530.30 × 194,469.80
  4. Step 4: Simplify right side
    474,751.40x = 138,565,624,934.94
  5. Step 5: Solve for x
    x = 138,565,624,934.94/474,751.40
  6. Step 6: Final answer
    x = 291,869.86

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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.