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Finding the Fourth Proportional to 336,028.80, 504,043.20 and 319,699.20

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Solution

The fourth proportional to 336,028.80, 504,043.20 and 319,699.20 is: 479,548.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,028.80 : 504,043.20 = 319,699.20 : x
  2. Step 2: Convert to fraction form
    336,028.80/504,043.20 = 319,699.20/x
  3. Step 3: Cross multiply
    336,028.80x = 504,043.20 × 319,699.20
  4. Step 4: Simplify right side
    336,028.80x = 161,142,207,805.44
  5. Step 5: Solve for x
    x = 161,142,207,805.44/336,028.80
  6. Step 6: Final answer
    x = 479,548.80

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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.