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Finding the Fourth Proportional to 885,232.40, 1,328,021.40 and 352,662.80

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Solution

The fourth proportional to 885,232.40, 1,328,021.40 and 352,662.80 is: 529,063.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,232.40 : 1,328,021.40 = 352,662.80 : x
  2. Step 2: Convert to fraction form
    885,232.40/1,328,021.40 = 352,662.80/x
  3. Step 3: Cross multiply
    885,232.40x = 1,328,021.40 × 352,662.80
  4. Step 4: Simplify right side
    885,232.40x = 468,343,745,383.92
  5. Step 5: Solve for x
    x = 468,343,745,383.92/885,232.40
  6. Step 6: Final answer
    x = 529,063.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.