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Finding the Fourth Proportional to 885,506.22, 1,328,791.50 and 316,842.48

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Solution

The fourth proportional to 885,506.22, 1,328,791.50 and 316,842.48 is: 475,454.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,506.22 : 1,328,791.50 = 316,842.48 : x
  2. Step 2: Convert to fraction form
    885,506.22/1,328,791.50 = 316,842.48/x
  3. Step 3: Cross multiply
    885,506.22x = 1,328,791.50 × 316,842.48
  4. Step 4: Simplify right side
    885,506.22x = 421,017,594,262.92
  5. Step 5: Solve for x
    x = 421,017,594,262.92/885,506.22
  6. Step 6: Final answer
    x = 475,454.14

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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.