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Finding the Fourth Proportional to 519,884.15, 779,826.23 and 519,884.15

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Solution

The fourth proportional to 519,884.15, 779,826.23 and 519,884.15 is: 779,826.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,884.15 : 779,826.23 = 519,884.15 : x
  2. Step 2: Convert to fraction form
    519,884.15/779,826.23 = 519,884.15/x
  3. Step 3: Cross multiply
    519,884.15x = 779,826.23 × 519,884.15
  4. Step 4: Simplify right side
    519,884.15x = 405,419,296,731.26
  5. Step 5: Solve for x
    x = 405,419,296,731.26/519,884.15
  6. Step 6: Final answer
    x = 779,826.23

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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.