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Finding the Fourth Proportional to 337,140.90, 505,711.35 and 303,315.30

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Solution

The fourth proportional to 337,140.90, 505,711.35 and 303,315.30 is: 454,972.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,140.90 : 505,711.35 = 303,315.30 : x
  2. Step 2: Convert to fraction form
    337,140.90/505,711.35 = 303,315.30/x
  3. Step 3: Cross multiply
    337,140.90x = 505,711.35 × 303,315.30
  4. Step 4: Simplify right side
    337,140.90x = 153,389,989,838.66
  5. Step 5: Solve for x
    x = 153,389,989,838.66/337,140.90
  6. Step 6: Final answer
    x = 454,972.95

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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.