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Finding the Fourth Proportional to 491,466.40, 737,588.40 and 192,090.40

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Solution

The fourth proportional to 491,466.40, 737,588.40 and 192,090.40 is: 288,287.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,466.40 : 737,588.40 = 192,090.40 : x
  2. Step 2: Convert to fraction form
    491,466.40/737,588.40 = 192,090.40/x
  3. Step 3: Cross multiply
    491,466.40x = 737,588.40 × 192,090.40
  4. Step 4: Simplify right side
    491,466.40x = 141,683,650,791.36
  5. Step 5: Solve for x
    x = 141,683,650,791.36/491,466.40
  6. Step 6: Final answer
    x = 288,287.56

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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.