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Finding the Fourth Proportional to 486,141.74, 670,874.37 and 271,279.52

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Solution

The fourth proportional to 486,141.74, 670,874.37 and 271,279.52 is: 374,365.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,141.74 : 670,874.37 = 271,279.52 : x
  2. Step 2: Convert to fraction form
    486,141.74/670,874.37 = 271,279.52/x
  3. Step 3: Cross multiply
    486,141.74x = 670,874.37 × 271,279.52
  4. Step 4: Simplify right side
    486,141.74x = 181,994,477,073.90
  5. Step 5: Solve for x
    x = 181,994,477,073.90/486,141.74
  6. Step 6: Final answer
    x = 374,365.05

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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.