Home / 280,624.14-420,939.86-93,635.64

Finding the Fourth Proportional to 280,624.14, 420,939.86 and 93,635.64

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Solution

The fourth proportional to 280,624.14, 420,939.86 and 93,635.64 is: 140,454.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,624.14 : 420,939.86 = 93,635.64 : x
  2. Step 2: Convert to fraction form
    280,624.14/420,939.86 = 93,635.64/x
  3. Step 3: Cross multiply
    280,624.14x = 420,939.86 × 93,635.64
  4. Step 4: Simplify right side
    280,624.14x = 39,414,973,192.61
  5. Step 5: Solve for x
    x = 39,414,973,192.61/280,624.14
  6. Step 6: Final answer
    x = 140,454.68

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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.