Home / 1,051,912.20-1,578,905.10-520,033.80

Finding the Fourth Proportional to 1,051,912.20, 1,578,905.10 and 520,033.80

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Solution

The fourth proportional to 1,051,912.20, 1,578,905.10 and 520,033.80 is: 780,563.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051,912.20 : 1,578,905.10 = 520,033.80 : x
  2. Step 2: Convert to fraction form
    1,051,912.20/1,578,905.10 = 520,033.80/x
  3. Step 3: Cross multiply
    1,051,912.20x = 1,578,905.10 × 520,033.80
  4. Step 4: Simplify right side
    1,051,912.20x = 821,084,018,992.38
  5. Step 5: Solve for x
    x = 821,084,018,992.38/1,051,912.20
  6. Step 6: Final answer
    x = 780,563.26

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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.