Home / 4,481,065.72-6,721,588.32-1,920,620.43

Finding the Fourth Proportional to 4,481,065.72, 6,721,588.32 and 1,920,620.43

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Solution

The fourth proportional to 4,481,065.72, 6,721,588.32 and 1,920,620.43 is: 2,880,926.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,481,065.72 : 6,721,588.32 = 1,920,620.43 : x
  2. Step 2: Convert to fraction form
    4,481,065.72/6,721,588.32 = 1,920,620.43/x
  3. Step 3: Cross multiply
    4,481,065.72x = 6,721,588.32 × 1,920,620.43
  4. Step 4: Simplify right side
    4,481,065.72x = 12,909,619,842,239.05
  5. Step 5: Solve for x
    x = 12,909,619,842,239.05/4,481,065.72
  6. Step 6: Final answer
    x = 2,880,926.25

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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.