Home / 280,366.56-420,538.86-93,378.06

Finding the Fourth Proportional to 280,366.56, 420,538.86 and 93,378.06

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Solution

The fourth proportional to 280,366.56, 420,538.86 and 93,378.06 is: 140,063.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,366.56 : 420,538.86 = 93,378.06 : x
  2. Step 2: Convert to fraction form
    280,366.56/420,538.86 = 93,378.06/x
  3. Step 3: Cross multiply
    280,366.56x = 420,538.86 × 93,378.06
  4. Step 4: Simplify right side
    280,366.56x = 39,269,102,901.41
  5. Step 5: Solve for x
    x = 39,269,102,901.41/280,366.56
  6. Step 6: Final answer
    x = 140,063.43

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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.