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Finding the Fourth Proportional to 353,376,405.80, 530,064,608.70 and 200,321,397.80

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Solution

The fourth proportional to 353,376,405.80, 530,064,608.70 and 200,321,397.80 is: 300,482,096.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,376,405.80 : 530,064,608.70 = 200,321,397.80 : x
  2. Step 2: Convert to fraction form
    353,376,405.80/530,064,608.70 = 200,321,397.80/x
  3. Step 3: Cross multiply
    353,376,405.80x = 530,064,608.70 × 200,321,397.80
  4. Step 4: Simplify right side
    353,376,405.80x = 106,183,283,339,094,048
  5. Step 5: Solve for x
    x = 106,183,283,339,094,048/353,376,405.80
  6. Step 6: Final answer
    x = 300,482,096.70

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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.