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Finding the Fourth Proportional to 342,041.56, 472,014.90 and 191,138.56

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Solution

The fourth proportional to 342,041.56, 472,014.90 and 191,138.56 is: 263,769.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,041.56 : 472,014.90 = 191,138.56 : x
  2. Step 2: Convert to fraction form
    342,041.56/472,014.90 = 191,138.56/x
  3. Step 3: Cross multiply
    342,041.56x = 472,014.90 × 191,138.56
  4. Step 4: Simplify right side
    342,041.56x = 90,220,248,284.54
  5. Step 5: Solve for x
    x = 90,220,248,284.54/342,041.56
  6. Step 6: Final answer
    x = 263,769.84

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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.