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Finding the Fourth Proportional to 345,893.48, 477,334.76 and 190,850.13

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Solution

The fourth proportional to 345,893.48, 477,334.76 and 190,850.13 is: 263,374.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,893.48 : 477,334.76 = 190,850.13 : x
  2. Step 2: Convert to fraction form
    345,893.48/477,334.76 = 190,850.13/x
  3. Step 3: Cross multiply
    345,893.48x = 477,334.76 × 190,850.13
  4. Step 4: Simplify right side
    345,893.48x = 91,099,400,999.52
  5. Step 5: Solve for x
    x = 91,099,400,999.52/345,893.48
  6. Step 6: Final answer
    x = 263,374.15

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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.