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Finding the Fourth Proportional to 529,649.22, 730,942.61 and 325,711.47

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Solution

The fourth proportional to 529,649.22, 730,942.61 and 325,711.47 is: 449,498.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,649.22 : 730,942.61 = 325,711.47 : x
  2. Step 2: Convert to fraction form
    529,649.22/730,942.61 = 325,711.47/x
  3. Step 3: Cross multiply
    529,649.22x = 730,942.61 × 325,711.47
  4. Step 4: Simplify right side
    529,649.22x = 238,076,390,360.18
  5. Step 5: Solve for x
    x = 238,076,390,360.18/529,649.22
  6. Step 6: Final answer
    x = 449,498.24

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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.