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Finding the Fourth Proportional to 444,897.90, 667,460.60 and 129,354.80

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Solution

The fourth proportional to 444,897.90, 667,460.60 and 129,354.80 is: 194,065.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,897.90 : 667,460.60 = 129,354.80 : x
  2. Step 2: Convert to fraction form
    444,897.90/667,460.60 = 129,354.80/x
  3. Step 3: Cross multiply
    444,897.90x = 667,460.60 × 129,354.80
  4. Step 4: Simplify right side
    444,897.90x = 86,339,231,774.11
  5. Step 5: Solve for x
    x = 86,339,231,774.11/444,897.90
  6. Step 6: Final answer
    x = 194,065.27

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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.