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Finding the Fourth Proportional to 483,803.39, 725,858.16 and 217,587.17

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Solution

The fourth proportional to 483,803.39, 725,858.16 and 217,587.17 is: 326,449.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,803.39 : 725,858.16 = 217,587.17 : x
  2. Step 2: Convert to fraction form
    483,803.39/725,858.16 = 217,587.17/x
  3. Step 3: Cross multiply
    483,803.39x = 725,858.16 × 217,587.17
  4. Step 4: Simplify right side
    483,803.39x = 157,937,422,855.81
  5. Step 5: Solve for x
    x = 157,937,422,855.81/483,803.39
  6. Step 6: Final answer
    x = 326,449.60

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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.