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Finding the Fourth Proportional to 575,074.44, 793,608.12 and 316,960.56

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Solution

The fourth proportional to 575,074.44, 793,608.12 and 316,960.56 is: 437,408.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,074.44 : 793,608.12 = 316,960.56 : x
  2. Step 2: Convert to fraction form
    575,074.44/793,608.12 = 316,960.56/x
  3. Step 3: Cross multiply
    575,074.44x = 793,608.12 × 316,960.56
  4. Step 4: Simplify right side
    575,074.44x = 251,542,474,135.75
  5. Step 5: Solve for x
    x = 251,542,474,135.75/575,074.44
  6. Step 6: Final answer
    x = 437,408.55

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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.