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Finding the Fourth Proportional to 445,684.45, 614,987.89 and 254,710.21

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Solution

The fourth proportional to 445,684.45, 614,987.89 and 254,710.21 is: 351,467.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,684.45 : 614,987.89 = 254,710.21 : x
  2. Step 2: Convert to fraction form
    445,684.45/614,987.89 = 254,710.21/x
  3. Step 3: Cross multiply
    445,684.45x = 614,987.89 × 254,710.21
  4. Step 4: Simplify right side
    445,684.45x = 156,643,694,609.36
  5. Step 5: Solve for x
    x = 156,643,694,609.36/445,684.45
  6. Step 6: Final answer
    x = 351,467.71

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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.