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Finding the Fourth Proportional to 483,693, 725,555.74 and 217,454.36

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Solution

The fourth proportional to 483,693, 725,555.74 and 217,454.36 is: 326,188.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,693 : 725,555.74 = 217,454.36 : x
  2. Step 2: Convert to fraction form
    483,693/725,555.74 = 217,454.36/x
  3. Step 3: Cross multiply
    483,693x = 725,555.74 × 217,454.36
  4. Step 4: Simplify right side
    483,693x = 157,775,259,086.03
  5. Step 5: Solve for x
    x = 157,775,259,086.03/483,693
  6. Step 6: Final answer
    x = 326,188.84

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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.