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Finding the Fourth Proportional to 375,625.44, 518,200.20 and 248,478.48

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Solution

The fourth proportional to 375,625.44, 518,200.20 and 248,478.48 is: 342,792.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,625.44 : 518,200.20 = 248,478.48 : x
  2. Step 2: Convert to fraction form
    375,625.44/518,200.20 = 248,478.48/x
  3. Step 3: Cross multiply
    375,625.44x = 518,200.20 × 248,478.48
  4. Step 4: Simplify right side
    375,625.44x = 128,761,598,031.70
  5. Step 5: Solve for x
    x = 128,761,598,031.70/375,625.44
  6. Step 6: Final answer
    x = 342,792.54

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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.