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Finding the Fourth Proportional to 351,635.52, 485,259.36 and 190,490.52

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Solution

The fourth proportional to 351,635.52, 485,259.36 and 190,490.52 is: 262,878.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,635.52 : 485,259.36 = 190,490.52 : x
  2. Step 2: Convert to fraction form
    351,635.52/485,259.36 = 190,490.52/x
  3. Step 3: Cross multiply
    351,635.52x = 485,259.36 × 190,490.52
  4. Step 4: Simplify right side
    351,635.52x = 92,437,307,821.27
  5. Step 5: Solve for x
    x = 92,437,307,821.27/351,635.52
  6. Step 6: Final answer
    x = 262,878.19

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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.