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Finding the Fourth Proportional to 534,490.80, 801,736.20 and 331,537.20

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Solution

The fourth proportional to 534,490.80, 801,736.20 and 331,537.20 is: 497,305.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,490.80 : 801,736.20 = 331,537.20 : x
  2. Step 2: Convert to fraction form
    534,490.80/801,736.20 = 331,537.20/x
  3. Step 3: Cross multiply
    534,490.80x = 801,736.20 × 331,537.20
  4. Step 4: Simplify right side
    534,490.80x = 265,805,374,886.64
  5. Step 5: Solve for x
    x = 265,805,374,886.64/534,490.80
  6. Step 6: Final answer
    x = 497,305.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.