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Finding the Fourth Proportional to 289,609.30, 433,539.15 and 254,617.30

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Solution

The fourth proportional to 289,609.30, 433,539.15 and 254,617.30 is: 381,156.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,609.30 : 433,539.15 = 254,617.30 : x
  2. Step 2: Convert to fraction form
    289,609.30/433,539.15 = 254,617.30/x
  3. Step 3: Cross multiply
    289,609.30x = 433,539.15 × 254,617.30
  4. Step 4: Simplify right side
    289,609.30x = 110,386,567,817.30
  5. Step 5: Solve for x
    x = 110,386,567,817.30/289,609.30
  6. Step 6: Final answer
    x = 381,156.85

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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.