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Finding the Fourth Proportional to 996,809,619.60, 1,375,662,064.68 and 550,773,036.72

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Solution

The fourth proportional to 996,809,619.60, 1,375,662,064.68 and 550,773,036.72 is: 760,102,589.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,809,619.60 : 1,375,662,064.68 = 550,773,036.72 : x
  2. Step 2: Convert to fraction form
    996,809,619.60/1,375,662,064.68 = 550,773,036.72/x
  3. Step 3: Cross multiply
    996,809,619.60x = 1,375,662,064.68 × 550,773,036.72
  4. Step 4: Simplify right side
    996,809,619.60x = 757,677,572,864,308,736
  5. Step 5: Solve for x
    x = 757,677,572,864,308,736/996,809,619.60
  6. Step 6: Final answer
    x = 760,102,589.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.