Home / 339,629.41-509,412.86-114,964.16

Finding the Fourth Proportional to 339,629.41, 509,412.86 and 114,964.16

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Solution

The fourth proportional to 339,629.41, 509,412.86 and 114,964.16 is: 172,435.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,629.41 : 509,412.86 = 114,964.16 : x
  2. Step 2: Convert to fraction form
    339,629.41/509,412.86 = 114,964.16/x
  3. Step 3: Cross multiply
    339,629.41x = 509,412.86 × 114,964.16
  4. Step 4: Simplify right side
    339,629.41x = 58,564,221,543.10
  5. Step 5: Solve for x
    x = 58,564,221,543.10/339,629.41
  6. Step 6: Final answer
    x = 172,435.66

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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.