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Finding the Fourth Proportional to 335,936.80, 503,905.20 and 319,607.20

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Solution

The fourth proportional to 335,936.80, 503,905.20 and 319,607.20 is: 479,410.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,936.80 : 503,905.20 = 319,607.20 : x
  2. Step 2: Convert to fraction form
    335,936.80/503,905.20 = 319,607.20/x
  3. Step 3: Cross multiply
    335,936.80x = 503,905.20 × 319,607.20
  4. Step 4: Simplify right side
    335,936.80x = 161,051,730,037.44
  5. Step 5: Solve for x
    x = 161,051,730,037.44/335,936.80
  6. Step 6: Final answer
    x = 479,410.80

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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.