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Finding the Fourth Proportional to 1,184,520, 1,634,676.60 and 647,976

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Solution

The fourth proportional to 1,184,520, 1,634,676.60 and 647,976 is: 894,228.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,184,520 : 1,634,676.60 = 647,976 : x
  2. Step 2: Convert to fraction form
    1,184,520/1,634,676.60 = 647,976/x
  3. Step 3: Cross multiply
    1,184,520x = 1,634,676.60 × 647,976
  4. Step 4: Simplify right side
    1,184,520x = 1,059,231,204,561.60
  5. Step 5: Solve for x
    x = 1,059,231,204,561.60/1,184,520
  6. Step 6: Final answer
    x = 894,228.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.