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Finding the Fourth Proportional to 504,500,515.20, 756,750,772.80 and 504,500,515.20

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Solution

The fourth proportional to 504,500,515.20, 756,750,772.80 and 504,500,515.20 is: 756,750,772.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,500,515.20 : 756,750,772.80 = 504,500,515.20 : x
  2. Step 2: Convert to fraction form
    504,500,515.20/756,750,772.80 = 504,500,515.20/x
  3. Step 3: Cross multiply
    504,500,515.20x = 756,750,772.80 × 504,500,515.20
  4. Step 4: Simplify right side
    504,500,515.20x = 381,781,154,755,598,144
  5. Step 5: Solve for x
    x = 381,781,154,755,598,144/504,500,515.20
  6. Step 6: Final answer
    x = 756,750,772.80

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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.