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Finding the Fourth Proportional to 519,883.15, 779,824.73 and 519,883.15

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Solution

The fourth proportional to 519,883.15, 779,824.73 and 519,883.15 is: 779,824.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,883.15 : 779,824.73 = 519,883.15 : x
  2. Step 2: Convert to fraction form
    519,883.15/779,824.73 = 519,883.15/x
  3. Step 3: Cross multiply
    519,883.15x = 779,824.73 × 519,883.15
  4. Step 4: Simplify right side
    519,883.15x = 405,417,737,080.30
  5. Step 5: Solve for x
    x = 405,417,737,080.30/519,883.15
  6. Step 6: Final answer
    x = 779,824.73

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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.