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Finding the Fourth Proportional to 356,403.88, 491,838.26 and 195,262.12

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Solution

The fourth proportional to 356,403.88, 491,838.26 and 195,262.12 is: 269,462.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,403.88 : 491,838.26 = 195,262.12 : x
  2. Step 2: Convert to fraction form
    356,403.88/491,838.26 = 195,262.12/x
  3. Step 3: Cross multiply
    356,403.88x = 491,838.26 × 195,262.12
  4. Step 4: Simplify right side
    356,403.88x = 96,037,380,368.40
  5. Step 5: Solve for x
    x = 96,037,380,368.40/356,403.88
  6. Step 6: Final answer
    x = 269,462.22

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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.