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Finding the Fourth Proportional to 341,408.78, 471,191.56 and 190,515.50

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Solution

The fourth proportional to 341,408.78, 471,191.56 and 190,515.50 is: 262,937.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,408.78 : 471,191.56 = 190,515.50 : x
  2. Step 2: Convert to fraction form
    341,408.78/471,191.56 = 190,515.50/x
  3. Step 3: Cross multiply
    341,408.78x = 471,191.56 × 190,515.50
  4. Step 4: Simplify right side
    341,408.78x = 89,769,295,649.18
  5. Step 5: Solve for x
    x = 89,769,295,649.18/341,408.78
  6. Step 6: Final answer
    x = 262,937.86

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1.5x scale

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.