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Finding the Fourth Proportional to 753,222, 1,039,193.46 and 426,490.44

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Solution

The fourth proportional to 753,222, 1,039,193.46 and 426,490.44 is: 588,413.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,222 : 1,039,193.46 = 426,490.44 : x
  2. Step 2: Convert to fraction form
    753,222/1,039,193.46 = 426,490.44/x
  3. Step 3: Cross multiply
    753,222x = 1,039,193.46 × 426,490.44
  4. Step 4: Simplify right side
    753,222x = 443,206,076,000.52
  5. Step 5: Solve for x
    x = 443,206,076,000.52/753,222
  6. Step 6: Final answer
    x = 588,413.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.