Home / 566,065.80-781,142.58-311,410.44

Finding the Fourth Proportional to 566,065.80, 781,142.58 and 311,410.44

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Solution

The fourth proportional to 566,065.80, 781,142.58 and 311,410.44 is: 429,730.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,065.80 : 781,142.58 = 311,410.44 : x
  2. Step 2: Convert to fraction form
    566,065.80/781,142.58 = 311,410.44/x
  3. Step 3: Cross multiply
    566,065.80x = 781,142.58 × 311,410.44
  4. Step 4: Simplify right side
    566,065.80x = 243,255,954,540.54
  5. Step 5: Solve for x
    x = 243,255,954,540.54/566,065.80
  6. Step 6: Final answer
    x = 429,730.88

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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.