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Finding the Fourth Proportional to 519,656.89, 779,550.94 and 164,543.98

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Solution

The fourth proportional to 519,656.89, 779,550.94 and 164,543.98 is: 246,836.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,656.89 : 779,550.94 = 164,543.98 : x
  2. Step 2: Convert to fraction form
    519,656.89/779,550.94 = 164,543.98/x
  3. Step 3: Cross multiply
    519,656.89x = 779,550.94 × 164,543.98
  4. Step 4: Simplify right side
    519,656.89x = 128,270,410,382.59
  5. Step 5: Solve for x
    x = 128,270,410,382.59/519,656.89
  6. Step 6: Final answer
    x = 246,836.74

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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.