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Finding the Fourth Proportional to 512,027.80, 768,041.70 and 179,637.40

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Solution

The fourth proportional to 512,027.80, 768,041.70 and 179,637.40 is: 269,456.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,027.80 : 768,041.70 = 179,637.40 : x
  2. Step 2: Convert to fraction form
    512,027.80/768,041.70 = 179,637.40/x
  3. Step 3: Cross multiply
    512,027.80x = 768,041.70 × 179,637.40
  4. Step 4: Simplify right side
    512,027.80x = 137,969,014,079.58
  5. Step 5: Solve for x
    x = 137,969,014,079.58/512,027.80
  6. Step 6: Final answer
    x = 269,456.10

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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.