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Finding the Fourth Proportional to 606,385,999.20, 909,578,998.80 and 560,469,496.80

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Solution

The fourth proportional to 606,385,999.20, 909,578,998.80 and 560,469,496.80 is: 840,704,245.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,385,999.20 : 909,578,998.80 = 560,469,496.80 : x
  2. Step 2: Convert to fraction form
    606,385,999.20/909,578,998.80 = 560,469,496.80/x
  3. Step 3: Cross multiply
    606,385,999.20x = 909,578,998.80 × 560,469,496.80
  4. Step 4: Simplify right side
    606,385,999.20x = 509,791,283,757,283,712
  5. Step 5: Solve for x
    x = 509,791,283,757,283,712/606,385,999.20
  6. Step 6: Final answer
    x = 840,704,245.20

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1.5x scale

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.