Home / 499,161.06-688,840.74-272,806.56

Finding the Fourth Proportional to 499,161.06, 688,840.74 and 272,806.56

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Solution

The fourth proportional to 499,161.06, 688,840.74 and 272,806.56 is: 376,472.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,161.06 : 688,840.74 = 272,806.56 : x
  2. Step 2: Convert to fraction form
    499,161.06/688,840.74 = 272,806.56/x
  3. Step 3: Cross multiply
    499,161.06x = 688,840.74 × 272,806.56
  4. Step 4: Simplify right side
    499,161.06x = 187,920,272,667.25
  5. Step 5: Solve for x
    x = 187,920,272,667.25/499,161.06
  6. Step 6: Final answer
    x = 376,472.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.