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Finding the Fourth Proportional to 388,675.14, 583,012.71 and 222,346.50

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Solution

The fourth proportional to 388,675.14, 583,012.71 and 222,346.50 is: 333,519.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,675.14 : 583,012.71 = 222,346.50 : x
  2. Step 2: Convert to fraction form
    388,675.14/583,012.71 = 222,346.50/x
  3. Step 3: Cross multiply
    388,675.14x = 583,012.71 × 222,346.50
  4. Step 4: Simplify right side
    388,675.14x = 129,630,835,524.02
  5. Step 5: Solve for x
    x = 129,630,835,524.02/388,675.14
  6. Step 6: Final answer
    x = 333,519.75

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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.