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Finding the Fourth Proportional to 472,563.60, 708,845.40 and 247,837.20

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Solution

The fourth proportional to 472,563.60, 708,845.40 and 247,837.20 is: 371,755.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,563.60 : 708,845.40 = 247,837.20 : x
  2. Step 2: Convert to fraction form
    472,563.60/708,845.40 = 247,837.20/x
  3. Step 3: Cross multiply
    472,563.60x = 708,845.40 × 247,837.20
  4. Step 4: Simplify right side
    472,563.60x = 175,678,259,168.88
  5. Step 5: Solve for x
    x = 175,678,259,168.88/472,563.60
  6. Step 6: Final answer
    x = 371,755.80

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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.