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Finding the Fourth Proportional to 485,578,546.07, 728,606,973.02 and 226,756,150.25

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Solution

The fourth proportional to 485,578,546.07, 728,606,973.02 and 226,756,150.25 is: 340,245,905.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,578,546.07 : 728,606,973.02 = 226,756,150.25 : x
  2. Step 2: Convert to fraction form
    485,578,546.07/728,606,973.02 = 226,756,150.25/x
  3. Step 3: Cross multiply
    485,578,546.07x = 728,606,973.02 × 226,756,150.25
  4. Step 4: Simplify right side
    485,578,546.07x = 165,216,112,242,544,000
  5. Step 5: Solve for x
    x = 165,216,112,242,544,000/485,578,546.07
  6. Step 6: Final answer
    x = 340,245,905.80

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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.