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Finding the Fourth Proportional to 778,810.10, 1,168,251.60 and 246,372.80

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Solution

The fourth proportional to 778,810.10, 1,168,251.60 and 246,372.80 is: 369,570.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,810.10 : 1,168,251.60 = 246,372.80 : x
  2. Step 2: Convert to fraction form
    778,810.10/1,168,251.60 = 246,372.80/x
  3. Step 3: Cross multiply
    778,810.10x = 1,168,251.60 × 246,372.80
  4. Step 4: Simplify right side
    778,810.10x = 287,825,417,796.48
  5. Step 5: Solve for x
    x = 287,825,417,796.48/778,810.10
  6. Step 6: Final answer
    x = 369,570.73

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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.