Home / 383,317.35-528,981.43-211,241.49

Finding the Fourth Proportional to 383,317.35, 528,981.43 and 211,241.49

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Solution

The fourth proportional to 383,317.35, 528,981.43 and 211,241.49 is: 291,515.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,317.35 : 528,981.43 = 211,241.49 : x
  2. Step 2: Convert to fraction form
    383,317.35/528,981.43 = 211,241.49/x
  3. Step 3: Cross multiply
    383,317.35x = 528,981.43 × 211,241.49
  4. Step 4: Simplify right side
    383,317.35x = 111,742,823,339.82
  5. Step 5: Solve for x
    x = 111,742,823,339.82/383,317.35
  6. Step 6: Final answer
    x = 291,515.17

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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.