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Finding the Fourth Proportional to 351,633.54, 485,253.55 and 190,492.55

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Solution

The fourth proportional to 351,633.54, 485,253.55 and 190,492.55 is: 262,879.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,633.54 : 485,253.55 = 190,492.55 : x
  2. Step 2: Convert to fraction form
    351,633.54/485,253.55 = 190,492.55/x
  3. Step 3: Cross multiply
    351,633.54x = 485,253.55 × 190,492.55
  4. Step 4: Simplify right side
    351,633.54x = 92,437,186,136.05
  5. Step 5: Solve for x
    x = 92,437,186,136.05/351,633.54
  6. Step 6: Final answer
    x = 262,879.32

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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.