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Finding the Fourth Proportional to 436,086.48, 654,123.24 and 120,536.40

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Solution

The fourth proportional to 436,086.48, 654,123.24 and 120,536.40 is: 180,802.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,086.48 : 654,123.24 = 120,536.40 : x
  2. Step 2: Convert to fraction form
    436,086.48/654,123.24 = 120,536.40/x
  3. Step 3: Cross multiply
    436,086.48x = 654,123.24 × 120,536.40
  4. Step 4: Simplify right side
    436,086.48x = 78,845,660,505.94
  5. Step 5: Solve for x
    x = 78,845,660,505.94/436,086.48
  6. Step 6: Final answer
    x = 180,802.81

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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.