Home / 412,760.30-619,140.58-272,486.12

Finding the Fourth Proportional to 412,760.30, 619,140.58 and 272,486.12

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Solution

The fourth proportional to 412,760.30, 619,140.58 and 272,486.12 is: 408,729.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,760.30 : 619,140.58 = 272,486.12 : x
  2. Step 2: Convert to fraction form
    412,760.30/619,140.58 = 272,486.12/x
  3. Step 3: Cross multiply
    412,760.30x = 619,140.58 × 272,486.12
  4. Step 4: Simplify right side
    412,760.30x = 168,707,214,378.75
  5. Step 5: Solve for x
    x = 168,707,214,378.75/412,760.30
  6. Step 6: Final answer
    x = 408,729.27

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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.