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Finding the Fourth Proportional to 455,471.40, 683,136.82 and 155,883.16

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Solution

The fourth proportional to 455,471.40, 683,136.82 and 155,883.16 is: 233,800.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,471.40 : 683,136.82 = 155,883.16 : x
  2. Step 2: Convert to fraction form
    455,471.40/683,136.82 = 155,883.16/x
  3. Step 3: Cross multiply
    455,471.40x = 683,136.82 × 155,883.16
  4. Step 4: Simplify right side
    455,471.40x = 106,489,526,213.95
  5. Step 5: Solve for x
    x = 106,489,526,213.95/455,471.40
  6. Step 6: Final answer
    x = 233,800.69

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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.