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Finding the Fourth Proportional to 519,883.70, 779,825.55 and 295,157.30

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Solution

The fourth proportional to 519,883.70, 779,825.55 and 295,157.30 is: 442,735.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,883.70 : 779,825.55 = 295,157.30 : x
  2. Step 2: Convert to fraction form
    519,883.70/779,825.55 = 295,157.30/x
  3. Step 3: Cross multiply
    519,883.70x = 779,825.55 × 295,157.30
  4. Step 4: Simplify right side
    519,883.70x = 230,171,203,809.02
  5. Step 5: Solve for x
    x = 230,171,203,809.02/519,883.70
  6. Step 6: Final answer
    x = 442,735.95

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Double scale
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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.