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Finding the Fourth Proportional to 339,471.79, 468,478.89 and 186,519.53

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Solution

The fourth proportional to 339,471.79, 468,478.89 and 186,519.53 is: 257,401.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,471.79 : 468,478.89 = 186,519.53 : x
  2. Step 2: Convert to fraction form
    339,471.79/468,478.89 = 186,519.53/x
  3. Step 3: Cross multiply
    339,471.79x = 468,478.89 × 186,519.53
  4. Step 4: Simplify right side
    339,471.79x = 87,380,462,377.72
  5. Step 5: Solve for x
    x = 87,380,462,377.72/339,471.79
  6. Step 6: Final answer
    x = 257,401.25

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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.