Home / 817,081.68-1,225,819.38-256,116.18

Finding the Fourth Proportional to 817,081.68, 1,225,819.38 and 256,116.18

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Solution

The fourth proportional to 817,081.68, 1,225,819.38 and 256,116.18 is: 384,235.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,081.68 : 1,225,819.38 = 256,116.18 : x
  2. Step 2: Convert to fraction form
    817,081.68/1,225,819.38 = 256,116.18/x
  3. Step 3: Cross multiply
    817,081.68x = 1,225,819.38 × 256,116.18
  4. Step 4: Simplify right side
    817,081.68x = 313,952,176,975.57
  5. Step 5: Solve for x
    x = 313,952,176,975.57/817,081.68
  6. Step 6: Final answer
    x = 384,235.98

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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.