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Finding the Fourth Proportional to 313,376,310.20, 439,180,330.60 and 313,376,310.20

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Solution

The fourth proportional to 313,376,310.20, 439,180,330.60 and 313,376,310.20 is: 439,180,330.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,376,310.20 : 439,180,330.60 = 313,376,310.20 : x
  2. Step 2: Convert to fraction form
    313,376,310.20/439,180,330.60 = 313,376,310.20/x
  3. Step 3: Cross multiply
    313,376,310.20x = 439,180,330.60 × 313,376,310.20
  4. Step 4: Simplify right side
    313,376,310.20x = 137,628,711,515,844,160
  5. Step 5: Solve for x
    x = 137,628,711,515,844,160/313,376,310.20
  6. Step 6: Final answer
    x = 439,180,330.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.