Home / 383,314.68-528,928.38-219,962.79

Finding the Fourth Proportional to 383,314.68, 528,928.38 and 219,962.79

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Solution

The fourth proportional to 383,314.68, 528,928.38 and 219,962.79 is: 303,522.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,314.68 : 528,928.38 = 219,962.79 : x
  2. Step 2: Convert to fraction form
    383,314.68/528,928.38 = 219,962.79/x
  3. Step 3: Cross multiply
    383,314.68x = 528,928.38 × 219,962.79
  4. Step 4: Simplify right side
    383,314.68x = 116,344,562,174.98
  5. Step 5: Solve for x
    x = 116,344,562,174.98/383,314.68
  6. Step 6: Final answer
    x = 303,522.32

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1.5x scale

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.