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Finding the Fourth Proportional to 619,997.60, 930,578.52 and 304,680.80

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Solution

The fourth proportional to 619,997.60, 930,578.52 and 304,680.80 is: 457,307.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,997.60 : 930,578.52 = 304,680.80 : x
  2. Step 2: Convert to fraction form
    619,997.60/930,578.52 = 304,680.80/x
  3. Step 3: Cross multiply
    619,997.60x = 930,578.52 × 304,680.80
  4. Step 4: Simplify right side
    619,997.60x = 283,529,407,936.42
  5. Step 5: Solve for x
    x = 283,529,407,936.42/619,997.60
  6. Step 6: Final answer
    x = 457,307.27

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Similar ratio
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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.