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Finding the Fourth Proportional to 313,470.69, 432,589.62 and 170,230.69

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Solution

The fourth proportional to 313,470.69, 432,589.62 and 170,230.69 is: 234,918.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,470.69 : 432,589.62 = 170,230.69 : x
  2. Step 2: Convert to fraction form
    313,470.69/432,589.62 = 170,230.69/x
  3. Step 3: Cross multiply
    313,470.69x = 432,589.62 × 170,230.69
  4. Step 4: Simplify right side
    313,470.69x = 73,640,029,499.44
  5. Step 5: Solve for x
    x = 73,640,029,499.44/313,470.69
  6. Step 6: Final answer
    x = 234,918.39

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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.