Home / 289,014.40-432,907.20-189,481.60

Finding the Fourth Proportional to 289,014.40, 432,907.20 and 189,481.60

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Solution

The fourth proportional to 289,014.40, 432,907.20 and 189,481.60 is: 283,819.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,014.40 : 432,907.20 = 189,481.60 : x
  2. Step 2: Convert to fraction form
    289,014.40/432,907.20 = 189,481.60/x
  3. Step 3: Cross multiply
    289,014.40x = 432,907.20 × 189,481.60
  4. Step 4: Simplify right side
    289,014.40x = 82,027,948,907.52
  5. Step 5: Solve for x
    x = 82,027,948,907.52/289,014.40
  6. Step 6: Final answer
    x = 283,819.59

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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.