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Finding the Fourth Proportional to 528,463.61, 792,693.26 and 191,425.37

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Solution

The fourth proportional to 528,463.61, 792,693.26 and 191,425.37 is: 287,137.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,463.61 : 792,693.26 = 191,425.37 : x
  2. Step 2: Convert to fraction form
    528,463.61/792,693.26 = 191,425.37/x
  3. Step 3: Cross multiply
    528,463.61x = 792,693.26 × 191,425.37
  4. Step 4: Simplify right side
    528,463.61x = 151,741,601,616.61
  5. Step 5: Solve for x
    x = 151,741,601,616.61/528,463.61
  6. Step 6: Final answer
    x = 287,137.28

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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.