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Finding the Fourth Proportional to 450,992.70, 622,343.35 and 247,003

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Solution

The fourth proportional to 450,992.70, 622,343.35 and 247,003 is: 340,849.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,992.70 : 622,343.35 = 247,003 : x
  2. Step 2: Convert to fraction form
    450,992.70/622,343.35 = 247,003/x
  3. Step 3: Cross multiply
    450,992.70x = 622,343.35 × 247,003
  4. Step 4: Simplify right side
    450,992.70x = 153,720,673,862.54
  5. Step 5: Solve for x
    x = 153,720,673,862.54/450,992.70
  6. Step 6: Final answer
    x = 340,849.58

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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.