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Finding the Fourth Proportional to 1,858,563.74, 2,787,845.74 and 660,533.34

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Solution

The fourth proportional to 1,858,563.74, 2,787,845.74 and 660,533.34 is: 990,800.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,858,563.74 : 2,787,845.74 = 660,533.34 : x
  2. Step 2: Convert to fraction form
    1,858,563.74/2,787,845.74 = 660,533.34/x
  3. Step 3: Cross multiply
    1,858,563.74x = 2,787,845.74 × 660,533.34
  4. Step 4: Simplify right side
    1,858,563.74x = 1,841,465,058,046.97
  5. Step 5: Solve for x
    x = 1,841,465,058,046.97/1,858,563.74
  6. Step 6: Final answer
    x = 990,800.06

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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.