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Finding the Fourth Proportional to 343,359,889.80, 515,039,834.70 and 329,967,576.60

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Solution

The fourth proportional to 343,359,889.80, 515,039,834.70 and 329,967,576.60 is: 494,951,364.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,359,889.80 : 515,039,834.70 = 329,967,576.60 : x
  2. Step 2: Convert to fraction form
    343,359,889.80/515,039,834.70 = 329,967,576.60/x
  3. Step 3: Cross multiply
    343,359,889.80x = 515,039,834.70 × 329,967,576.60
  4. Step 4: Simplify right side
    343,359,889.80x = 169,946,446,108,423,584
  5. Step 5: Solve for x
    x = 169,946,446,108,423,584/343,359,889.80
  6. Step 6: Final answer
    x = 494,951,364.90

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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.