Home / 480,680.12-663,138.20-276,682.22

Finding the Fourth Proportional to 480,680.12, 663,138.20 and 276,682.22

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Solution

The fourth proportional to 480,680.12, 663,138.20 and 276,682.22 is: 381,706.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,680.12 : 663,138.20 = 276,682.22 : x
  2. Step 2: Convert to fraction form
    480,680.12/663,138.20 = 276,682.22/x
  3. Step 3: Cross multiply
    480,680.12x = 663,138.20 × 276,682.22
  4. Step 4: Simplify right side
    480,680.12x = 183,478,549,342.80
  5. Step 5: Solve for x
    x = 183,478,549,342.80/480,680.12
  6. Step 6: Final answer
    x = 381,706.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.