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Finding the Fourth Proportional to 839,809,325.30, 1,173,012,077.50 and 839,809,325.30

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Solution

The fourth proportional to 839,809,325.30, 1,173,012,077.50 and 839,809,325.30 is: 1,173,012,077.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,809,325.30 : 1,173,012,077.50 = 839,809,325.30 : x
  2. Step 2: Convert to fraction form
    839,809,325.30/1,173,012,077.50 = 839,809,325.30/x
  3. Step 3: Cross multiply
    839,809,325.30x = 1,173,012,077.50 × 839,809,325.30
  4. Step 4: Simplify right side
    839,809,325.30x = 985,106,481,374,026,240
  5. Step 5: Solve for x
    x = 985,106,481,374,026,240/839,809,325.30
  6. Step 6: Final answer
    x = 1,173,012,077.50

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.