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Finding the Fourth Proportional to 339,359.07, 509,040.09 and 114,720.69

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Solution

The fourth proportional to 339,359.07, 509,040.09 and 114,720.69 is: 172,081.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,359.07 : 509,040.09 = 114,720.69 : x
  2. Step 2: Convert to fraction form
    339,359.07/509,040.09 = 114,720.69/x
  3. Step 3: Cross multiply
    339,359.07x = 509,040.09 × 114,720.69
  4. Step 4: Simplify right side
    339,359.07x = 58,397,430,362.46
  5. Step 5: Solve for x
    x = 58,397,430,362.46/339,359.07
  6. Step 6: Final answer
    x = 172,081.54

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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.