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Finding the Fourth Proportional to 529,600.61, 730,910.08 and 314,738.80

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Solution

The fourth proportional to 529,600.61, 730,910.08 and 314,738.80 is: 434,375.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,600.61 : 730,910.08 = 314,738.80 : x
  2. Step 2: Convert to fraction form
    529,600.61/730,910.08 = 314,738.80/x
  3. Step 3: Cross multiply
    529,600.61x = 730,910.08 × 314,738.80
  4. Step 4: Simplify right side
    529,600.61x = 230,045,760,053.25
  5. Step 5: Solve for x
    x = 230,045,760,053.25/529,600.61
  6. Step 6: Final answer
    x = 434,375.93

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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.