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Finding the Fourth Proportional to 463,603.20, 695,404.80 and 214,771.20

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Solution

The fourth proportional to 463,603.20, 695,404.80 and 214,771.20 is: 322,156.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,603.20 : 695,404.80 = 214,771.20 : x
  2. Step 2: Convert to fraction form
    463,603.20/695,404.80 = 214,771.20/x
  3. Step 3: Cross multiply
    463,603.20x = 695,404.80 × 214,771.20
  4. Step 4: Simplify right side
    463,603.20x = 149,352,923,381.76
  5. Step 5: Solve for x
    x = 149,352,923,381.76/463,603.20
  6. Step 6: Final answer
    x = 322,156.80

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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.