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Finding the Fourth Proportional to 528,135.15, 792,003.80 and 191,092.46

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Solution

The fourth proportional to 528,135.15, 792,003.80 and 191,092.46 is: 286,566.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,135.15 : 792,003.80 = 191,092.46 : x
  2. Step 2: Convert to fraction form
    528,135.15/792,003.80 = 191,092.46/x
  3. Step 3: Cross multiply
    528,135.15x = 792,003.80 × 191,092.46
  4. Step 4: Simplify right side
    528,135.15x = 151,345,954,471.35
  5. Step 5: Solve for x
    x = 151,345,954,471.35/528,135.15
  6. Step 6: Final answer
    x = 286,566.71

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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.