Home / 1,287,105.92-1,930,665.36-529,360.64

Finding the Fourth Proportional to 1,287,105.92, 1,930,665.36 and 529,360.64

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Solution

The fourth proportional to 1,287,105.92, 1,930,665.36 and 529,360.64 is: 794,043.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,105.92 : 1,930,665.36 = 529,360.64 : x
  2. Step 2: Convert to fraction form
    1,287,105.92/1,930,665.36 = 529,360.64/x
  3. Step 3: Cross multiply
    1,287,105.92x = 1,930,665.36 × 529,360.64
  4. Step 4: Simplify right side
    1,287,105.92x = 1,022,018,250,595.43
  5. Step 5: Solve for x
    x = 1,022,018,250,595.43/1,287,105.92
  6. Step 6: Final answer
    x = 794,043.63

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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.