Home / 319,350.57-440,710.17-206,370.15

Finding the Fourth Proportional to 319,350.57, 440,710.17 and 206,370.15

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Solution

The fourth proportional to 319,350.57, 440,710.17 and 206,370.15 is: 284,794.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,350.57 : 440,710.17 = 206,370.15 : x
  2. Step 2: Convert to fraction form
    319,350.57/440,710.17 = 206,370.15/x
  3. Step 3: Cross multiply
    319,350.57x = 440,710.17 × 206,370.15
  4. Step 4: Simplify right side
    319,350.57x = 90,949,423,889.43
  5. Step 5: Solve for x
    x = 90,949,423,889.43/319,350.57
  6. Step 6: Final answer
    x = 284,794.93

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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.