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Finding the Fourth Proportional to 393,104.80, 589,657.20 and 244,291.60

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Solution

The fourth proportional to 393,104.80, 589,657.20 and 244,291.60 is: 366,437.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,104.80 : 589,657.20 = 244,291.60 : x
  2. Step 2: Convert to fraction form
    393,104.80/589,657.20 = 244,291.60/x
  3. Step 3: Cross multiply
    393,104.80x = 589,657.20 × 244,291.60
  4. Step 4: Simplify right side
    393,104.80x = 144,048,300,839.52
  5. Step 5: Solve for x
    x = 144,048,300,839.52/393,104.80
  6. Step 6: Final answer
    x = 366,437.40

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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.