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Finding the Fourth Proportional to 289,086.83, 433,627.80 and 225,960.05

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Solution

The fourth proportional to 289,086.83, 433,627.80 and 225,960.05 is: 338,938.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,086.83 : 433,627.80 = 225,960.05 : x
  2. Step 2: Convert to fraction form
    289,086.83/433,627.80 = 225,960.05/x
  3. Step 3: Cross multiply
    289,086.83x = 433,627.80 × 225,960.05
  4. Step 4: Simplify right side
    289,086.83x = 97,982,557,201.25
  5. Step 5: Solve for x
    x = 97,982,557,201.25/289,086.83
  6. Step 6: Final answer
    x = 338,938.16

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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.