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Finding the Fourth Proportional to 352,611, 486,810.84 and 214,841.91

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Solution

The fourth proportional to 352,611, 486,810.84 and 214,841.91 is: 296,608.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,611 : 486,810.84 = 214,841.91 : x
  2. Step 2: Convert to fraction form
    352,611/486,810.84 = 214,841.91/x
  3. Step 3: Cross multiply
    352,611x = 486,810.84 × 214,841.91
  4. Step 4: Simplify right side
    352,611x = 104,587,370,674.30
  5. Step 5: Solve for x
    x = 104,587,370,674.30/352,611
  6. Step 6: Final answer
    x = 296,608.36

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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.