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Finding the Fourth Proportional to 393,802.20, 591,140.70 and 244,211.40

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Solution

The fourth proportional to 393,802.20, 591,140.70 and 244,211.40 is: 366,588.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,802.20 : 591,140.70 = 244,211.40 : x
  2. Step 2: Convert to fraction form
    393,802.20/591,140.70 = 244,211.40/x
  3. Step 3: Cross multiply
    393,802.20x = 591,140.70 × 244,211.40
  4. Step 4: Simplify right side
    393,802.20x = 144,363,297,943.98
  5. Step 5: Solve for x
    x = 144,363,297,943.98/393,802.20
  6. Step 6: Final answer
    x = 366,588.35

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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.