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Finding the Fourth Proportional to 388,673.14, 583,009.71 and 222,344.50

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Solution

The fourth proportional to 388,673.14, 583,009.71 and 222,344.50 is: 333,516.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,673.14 : 583,009.71 = 222,344.50 : x
  2. Step 2: Convert to fraction form
    388,673.14/583,009.71 = 222,344.50/x
  3. Step 3: Cross multiply
    388,673.14x = 583,009.71 × 222,344.50
  4. Step 4: Simplify right side
    388,673.14x = 129,629,002,465.10
  5. Step 5: Solve for x
    x = 129,629,002,465.10/388,673.14
  6. Step 6: Final answer
    x = 333,516.75

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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.