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Finding the Fourth Proportional to 483,776.12, 725,650.82 and 128,793.22

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Solution

The fourth proportional to 483,776.12, 725,650.82 and 128,793.22 is: 193,186.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,776.12 : 725,650.82 = 128,793.22 : x
  2. Step 2: Convert to fraction form
    483,776.12/725,650.82 = 128,793.22/x
  3. Step 3: Cross multiply
    483,776.12x = 725,650.82 × 128,793.22
  4. Step 4: Simplify right side
    483,776.12x = 93,458,905,703.44
  5. Step 5: Solve for x
    x = 93,458,905,703.44/483,776.12
  6. Step 6: Final answer
    x = 193,186.27

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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.