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Finding the Fourth Proportional to 778,976.40, 1,168,464.60 and 778,976.40

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Solution

The fourth proportional to 778,976.40, 1,168,464.60 and 778,976.40 is: 1,168,464.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,976.40 : 1,168,464.60 = 778,976.40 : x
  2. Step 2: Convert to fraction form
    778,976.40/1,168,464.60 = 778,976.40/x
  3. Step 3: Cross multiply
    778,976.40x = 1,168,464.60 × 778,976.40
  4. Step 4: Simplify right side
    778,976.40x = 910,206,347,635.44
  5. Step 5: Solve for x
    x = 910,206,347,635.44/778,976.40
  6. Step 6: Final answer
    x = 1,168,464.60

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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.