Home / 1,638,279.70-2,455,644.44-838,464.64

Finding the Fourth Proportional to 1,638,279.70, 2,455,644.44 and 838,464.64

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Solution

The fourth proportional to 1,638,279.70, 2,455,644.44 and 838,464.64 is: 1,256,788.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,279.70 : 2,455,644.44 = 838,464.64 : x
  2. Step 2: Convert to fraction form
    1,638,279.70/2,455,644.44 = 838,464.64/x
  3. Step 3: Cross multiply
    1,638,279.70x = 2,455,644.44 × 838,464.64
  4. Step 4: Simplify right side
    1,638,279.70x = 2,058,971,031,352.60
  5. Step 5: Solve for x
    x = 2,058,971,031,352.60/1,638,279.70
  6. Step 6: Final answer
    x = 1,256,788.47

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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.