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Finding the Fourth Proportional to 450,574.73, 621,791.49 and 243,842.70

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Solution

The fourth proportional to 450,574.73, 621,791.49 and 243,842.70 is: 336,502.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,574.73 : 621,791.49 = 243,842.70 : x
  2. Step 2: Convert to fraction form
    450,574.73/621,791.49 = 243,842.70/x
  3. Step 3: Cross multiply
    450,574.73x = 621,791.49 × 243,842.70
  4. Step 4: Simplify right side
    450,574.73x = 151,619,315,758.62
  5. Step 5: Solve for x
    x = 151,619,315,758.62/450,574.73
  6. Step 6: Final answer
    x = 336,502.04

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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.