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Finding the Fourth Proportional to 481,590.80, 722,472.60 and 201,136.40

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Solution

The fourth proportional to 481,590.80, 722,472.60 and 201,136.40 is: 301,740.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,590.80 : 722,472.60 = 201,136.40 : x
  2. Step 2: Convert to fraction form
    481,590.80/722,472.60 = 201,136.40/x
  3. Step 3: Cross multiply
    481,590.80x = 722,472.60 × 201,136.40
  4. Step 4: Simplify right side
    481,590.80x = 145,315,537,862.64
  5. Step 5: Solve for x
    x = 145,315,537,862.64/481,590.80
  6. Step 6: Final answer
    x = 301,740.68

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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.