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Finding the Fourth Proportional to 439,760.50, 606,918.09 and 248,772.22

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Solution

The fourth proportional to 439,760.50, 606,918.09 and 248,772.22 is: 343,333.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,760.50 : 606,918.09 = 248,772.22 : x
  2. Step 2: Convert to fraction form
    439,760.50/606,918.09 = 248,772.22/x
  3. Step 3: Cross multiply
    439,760.50x = 606,918.09 × 248,772.22
  4. Step 4: Simplify right side
    439,760.50x = 150,984,360,607.46
  5. Step 5: Solve for x
    x = 150,984,360,607.46/439,760.50
  6. Step 6: Final answer
    x = 343,333.16

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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.