Home / 1,181,408.32-1,771,489.76-515,782.72

Finding the Fourth Proportional to 1,181,408.32, 1,771,489.76 and 515,782.72

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Solution

The fourth proportional to 1,181,408.32, 1,771,489.76 and 515,782.72 is: 773,402.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,181,408.32 : 1,771,489.76 = 515,782.72 : x
  2. Step 2: Convert to fraction form
    1,181,408.32/1,771,489.76 = 515,782.72/x
  3. Step 3: Cross multiply
    1,181,408.32x = 1,771,489.76 × 515,782.72
  4. Step 4: Simplify right side
    1,181,408.32x = 913,703,806,864.95
  5. Step 5: Solve for x
    x = 913,703,806,864.95/1,181,408.32
  6. Step 6: Final answer
    x = 773,402.21

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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.