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Finding the Fourth Proportional to 609,062.60, 911,625.60 and 475,218.20

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Solution

The fourth proportional to 609,062.60, 911,625.60 and 475,218.20 is: 711,291.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,062.60 : 911,625.60 = 475,218.20 : x
  2. Step 2: Convert to fraction form
    609,062.60/911,625.60 = 475,218.20/x
  3. Step 3: Cross multiply
    609,062.60x = 911,625.60 × 475,218.20
  4. Step 4: Simplify right side
    609,062.60x = 433,221,076,705.92
  5. Step 5: Solve for x
    x = 433,221,076,705.92/609,062.60
  6. Step 6: Final answer
    x = 711,291.54

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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.