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Finding the Fourth Proportional to 577,469,812.40, 866,204,718.60 and 441,420,916.40

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Solution

The fourth proportional to 577,469,812.40, 866,204,718.60 and 441,420,916.40 is: 662,131,374.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,469,812.40 : 866,204,718.60 = 441,420,916.40 : x
  2. Step 2: Convert to fraction form
    577,469,812.40/866,204,718.60 = 441,420,916.40/x
  3. Step 3: Cross multiply
    577,469,812.40x = 866,204,718.60 × 441,420,916.40
  4. Step 4: Simplify right side
    577,469,812.40x = 382,360,880,674,416,128
  5. Step 5: Solve for x
    x = 382,360,880,674,416,128/577,469,812.40
  6. Step 6: Final answer
    x = 662,131,374.60

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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.