Home / 383,317.54-528,981.68-211,241.67

Finding the Fourth Proportional to 383,317.54, 528,981.68 and 211,241.67

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Solution

The fourth proportional to 383,317.54, 528,981.68 and 211,241.67 is: 291,515.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,317.54 : 528,981.68 = 211,241.67 : x
  2. Step 2: Convert to fraction form
    383,317.54/528,981.68 = 211,241.67/x
  3. Step 3: Cross multiply
    383,317.54x = 528,981.68 × 211,241.67
  4. Step 4: Simplify right side
    383,317.54x = 111,742,974,010.71
  5. Step 5: Solve for x
    x = 111,742,974,010.71/383,317.54
  6. Step 6: Final answer
    x = 291,515.42

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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.