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Finding the Fourth Proportional to 551,349.99, 826,636.15 and 214,109.73

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Solution

The fourth proportional to 551,349.99, 826,636.15 and 214,109.73 is: 321,013.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,349.99 : 826,636.15 = 214,109.73 : x
  2. Step 2: Convert to fraction form
    551,349.99/826,636.15 = 214,109.73/x
  3. Step 3: Cross multiply
    551,349.99x = 826,636.15 × 214,109.73
  4. Step 4: Simplify right side
    551,349.99x = 176,990,842,884.74
  5. Step 5: Solve for x
    x = 176,990,842,884.74/551,349.99
  6. Step 6: Final answer
    x = 321,013.60

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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.