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Finding the Fourth Proportional to 352,085.76, 485,878.58 and 190,940.76

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Solution

The fourth proportional to 352,085.76, 485,878.58 and 190,940.76 is: 263,498.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,085.76 : 485,878.58 = 190,940.76 : x
  2. Step 2: Convert to fraction form
    352,085.76/485,878.58 = 190,940.76/x
  3. Step 3: Cross multiply
    352,085.76x = 485,878.58 × 190,940.76
  4. Step 4: Simplify right side
    352,085.76x = 92,774,025,332.92
  5. Step 5: Solve for x
    x = 92,774,025,332.92/352,085.76
  6. Step 6: Final answer
    x = 263,498.37

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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.