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Finding the Fourth Proportional to 486,407.22, 671,213.95 and 271,560.93

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Solution

The fourth proportional to 486,407.22, 671,213.95 and 271,560.93 is: 374,738.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,407.22 : 671,213.95 = 271,560.93 : x
  2. Step 2: Convert to fraction form
    486,407.22/671,213.95 = 271,560.93/x
  3. Step 3: Cross multiply
    486,407.22x = 671,213.95 × 271,560.93
  4. Step 4: Simplify right side
    486,407.22x = 182,275,484,490.97
  5. Step 5: Solve for x
    x = 182,275,484,490.97/486,407.22
  6. Step 6: Final answer
    x = 374,738.44

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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.