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Finding the Fourth Proportional to 486,796.20, 671,775.54 and 271,934.36

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Solution

The fourth proportional to 486,796.20, 671,775.54 and 271,934.36 is: 375,267.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,796.20 : 671,775.54 = 271,934.36 : x
  2. Step 2: Convert to fraction form
    486,796.20/671,775.54 = 271,934.36/x
  3. Step 3: Cross multiply
    486,796.20x = 671,775.54 × 271,934.36
  4. Step 4: Simplify right side
    486,796.20x = 182,678,851,533.55
  5. Step 5: Solve for x
    x = 182,678,851,533.55/486,796.20
  6. Step 6: Final answer
    x = 375,267.62

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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.