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Finding the Fourth Proportional to 351,218.40, 525,272.40 and 295,231.20

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Solution

The fourth proportional to 351,218.40, 525,272.40 and 295,231.20 is: 441,539.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,218.40 : 525,272.40 = 295,231.20 : x
  2. Step 2: Convert to fraction form
    351,218.40/525,272.40 = 295,231.20/x
  3. Step 3: Cross multiply
    351,218.40x = 525,272.40 × 295,231.20
  4. Step 4: Simplify right side
    351,218.40x = 155,076,800,978.88
  5. Step 5: Solve for x
    x = 155,076,800,978.88/351,218.40
  6. Step 6: Final answer
    x = 441,539.51

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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.