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Finding the Fourth Proportional to 436,480.75, 654,748.80 and 136,973.14

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Solution

The fourth proportional to 436,480.75, 654,748.80 and 136,973.14 is: 205,468.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,480.75 : 654,748.80 = 136,973.14 : x
  2. Step 2: Convert to fraction form
    436,480.75/654,748.80 = 136,973.14/x
  3. Step 3: Cross multiply
    436,480.75x = 654,748.80 × 136,973.14
  4. Step 4: Simplify right side
    436,480.75x = 89,682,995,773.49
  5. Step 5: Solve for x
    x = 89,682,995,773.49/436,480.75
  6. Step 6: Final answer
    x = 205,468.39

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1.5x scale

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.