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Finding the Fourth Proportional to 351,602.31, 485,213.52 and 190,457.36

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Solution

The fourth proportional to 351,602.31, 485,213.52 and 190,457.36 is: 262,832.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,602.31 : 485,213.52 = 190,457.36 : x
  2. Step 2: Convert to fraction form
    351,602.31/485,213.52 = 190,457.36/x
  3. Step 3: Cross multiply
    351,602.31x = 485,213.52 × 190,457.36
  4. Step 4: Simplify right side
    351,602.31x = 92,412,487,376.24
  5. Step 5: Solve for x
    x = 92,412,487,376.24/351,602.31
  6. Step 6: Final answer
    x = 262,832.42

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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.