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Finding the Fourth Proportional to 343,648.56, 474,212.22 and 190,677.05

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Solution

The fourth proportional to 343,648.56, 474,212.22 and 190,677.05 is: 263,121.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,648.56 : 474,212.22 = 190,677.05 : x
  2. Step 2: Convert to fraction form
    343,648.56/474,212.22 = 190,677.05/x
  3. Step 3: Cross multiply
    343,648.56x = 474,212.22 × 190,677.05
  4. Step 4: Simplify right side
    343,648.56x = 90,421,387,183.55
  5. Step 5: Solve for x
    x = 90,421,387,183.55/343,648.56
  6. Step 6: Final answer
    x = 263,121.68

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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.