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Finding the Fourth Proportional to 560,327.44, 773,391.36 and 345,643.60

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Solution

The fourth proportional to 560,327.44, 773,391.36 and 345,643.60 is: 477,074.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,327.44 : 773,391.36 = 345,643.60 : x
  2. Step 2: Convert to fraction form
    560,327.44/773,391.36 = 345,643.60/x
  3. Step 3: Cross multiply
    560,327.44x = 773,391.36 × 345,643.60
  4. Step 4: Simplify right side
    560,327.44x = 267,317,773,879.30
  5. Step 5: Solve for x
    x = 267,317,773,879.30/560,327.44
  6. Step 6: Final answer
    x = 477,074.22

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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.