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Finding the Fourth Proportional to 302,496.80, 453,745.20 and 261,024.80

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Solution

The fourth proportional to 302,496.80, 453,745.20 and 261,024.80 is: 391,537.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,496.80 : 453,745.20 = 261,024.80 : x
  2. Step 2: Convert to fraction form
    302,496.80/453,745.20 = 261,024.80/x
  3. Step 3: Cross multiply
    302,496.80x = 453,745.20 × 261,024.80
  4. Step 4: Simplify right side
    302,496.80x = 118,438,750,080.96
  5. Step 5: Solve for x
    x = 118,438,750,080.96/302,496.80
  6. Step 6: Final answer
    x = 391,537.20

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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.