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Finding the Fourth Proportional to 340,278.99, 469,612.13 and 197,041.56

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Solution

The fourth proportional to 340,278.99, 469,612.13 and 197,041.56 is: 271,933.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,278.99 : 469,612.13 = 197,041.56 : x
  2. Step 2: Convert to fraction form
    340,278.99/469,612.13 = 197,041.56/x
  3. Step 3: Cross multiply
    340,278.99x = 469,612.13 × 197,041.56
  4. Step 4: Simplify right side
    340,278.99x = 92,533,105,704.92
  5. Step 5: Solve for x
    x = 92,533,105,704.92/340,278.99
  6. Step 6: Final answer
    x = 271,933.06

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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.