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Finding the Fourth Proportional to 797,888,912.60, 1,196,833,368.90 and 779,973,008.60

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Solution

The fourth proportional to 797,888,912.60, 1,196,833,368.90 and 779,973,008.60 is: 1,169,959,512.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    797,888,912.60 : 1,196,833,368.90 = 779,973,008.60 : x
  2. Step 2: Convert to fraction form
    797,888,912.60/1,196,833,368.90 = 779,973,008.60/x
  3. Step 3: Cross multiply
    797,888,912.60x = 1,196,833,368.90 × 779,973,008.60
  4. Step 4: Simplify right side
    797,888,912.60x = 933,497,723,533,806,720
  5. Step 5: Solve for x
    x = 933,497,723,533,806,720/797,888,912.60
  6. Step 6: Final answer
    x = 1,169,959,512.90

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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.