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Finding the Fourth Proportional to 442,189.81, 610,243.57 and 248,658.43

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Solution

The fourth proportional to 442,189.81, 610,243.57 and 248,658.43 is: 343,160.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,189.81 : 610,243.57 = 248,658.43 : x
  2. Step 2: Convert to fraction form
    442,189.81/610,243.57 = 248,658.43/x
  3. Step 3: Cross multiply
    442,189.81x = 610,243.57 × 248,658.43
  4. Step 4: Simplify right side
    442,189.81x = 151,742,204,982.58
  5. Step 5: Solve for x
    x = 151,742,204,982.58/442,189.81
  6. Step 6: Final answer
    x = 343,160.79

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1.5x scale

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.