Home / 1,279,352.10-1,918,995.01-521,192.34

Finding the Fourth Proportional to 1,279,352.10, 1,918,995.01 and 521,192.34

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Solution

The fourth proportional to 1,279,352.10, 1,918,995.01 and 521,192.34 is: 781,775.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,352.10 : 1,918,995.01 = 521,192.34 : x
  2. Step 2: Convert to fraction form
    1,279,352.10/1,918,995.01 = 521,192.34/x
  3. Step 3: Cross multiply
    1,279,352.10x = 1,918,995.01 × 521,192.34
  4. Step 4: Simplify right side
    1,279,352.10x = 1,000,165,498,407.24
  5. Step 5: Solve for x
    x = 1,000,165,498,407.24/1,279,352.10
  6. Step 6: Final answer
    x = 781,775.01

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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.