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Finding the Fourth Proportional to 550,210.94, 825,246.12 and 213,020.90

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Solution

The fourth proportional to 550,210.94, 825,246.12 and 213,020.90 is: 319,504.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,210.94 : 825,246.12 = 213,020.90 : x
  2. Step 2: Convert to fraction form
    550,210.94/825,246.12 = 213,020.90/x
  3. Step 3: Cross multiply
    550,210.94x = 825,246.12 × 213,020.90
  4. Step 4: Simplify right side
    550,210.94x = 175,794,671,203.91
  5. Step 5: Solve for x
    x = 175,794,671,203.91/550,210.94
  6. Step 6: Final answer
    x = 319,504.14

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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.