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Finding the Fourth Proportional to 551,340.99, 826,622.66 and 214,100.73

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Solution

The fourth proportional to 551,340.99, 826,622.66 and 214,100.73 is: 321,000.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,340.99 : 826,622.66 = 214,100.73 : x
  2. Step 2: Convert to fraction form
    551,340.99/826,622.66 = 214,100.73/x
  3. Step 3: Cross multiply
    551,340.99x = 826,622.66 × 214,100.73
  4. Step 4: Simplify right side
    551,340.99x = 176,980,513,870.04
  5. Step 5: Solve for x
    x = 176,980,513,870.04/551,340.99
  6. Step 6: Final answer
    x = 321,000.10

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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.