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Finding the Fourth Proportional to 339,437.88, 509,222.43 and 114,834.80

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Solution

The fourth proportional to 339,437.88, 509,222.43 and 114,834.80 is: 172,274.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,437.88 : 509,222.43 = 114,834.80 : x
  2. Step 2: Convert to fraction form
    339,437.88/509,222.43 = 114,834.80/x
  3. Step 3: Cross multiply
    339,437.88x = 509,222.43 × 114,834.80
  4. Step 4: Simplify right side
    339,437.88x = 58,476,457,177.62
  5. Step 5: Solve for x
    x = 58,476,457,177.62/339,437.88
  6. Step 6: Final answer
    x = 172,274.40

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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.