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Finding the Fourth Proportional to 341,838.70, 512,604.45 and 131,406.70

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Solution

The fourth proportional to 341,838.70, 512,604.45 and 131,406.70 is: 197,051.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,838.70 : 512,604.45 = 131,406.70 : x
  2. Step 2: Convert to fraction form
    341,838.70/512,604.45 = 131,406.70/x
  3. Step 3: Cross multiply
    341,838.70x = 512,604.45 × 131,406.70
  4. Step 4: Simplify right side
    341,838.70x = 67,359,659,179.82
  5. Step 5: Solve for x
    x = 67,359,659,179.82/341,838.70
  6. Step 6: Final answer
    x = 197,051.00

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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.