Home / 383,225.30-528,829.71-211,109.42

Finding the Fourth Proportional to 383,225.30, 528,829.71 and 211,109.42

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Solution

The fourth proportional to 383,225.30, 528,829.71 and 211,109.42 is: 291,319.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,225.30 : 528,829.71 = 211,109.42 : x
  2. Step 2: Convert to fraction form
    383,225.30/528,829.71 = 211,109.42/x
  3. Step 3: Cross multiply
    383,225.30x = 528,829.71 × 211,109.42
  4. Step 4: Simplify right side
    383,225.30x = 111,640,933,887.28
  5. Step 5: Solve for x
    x = 111,640,933,887.28/383,225.30
  6. Step 6: Final answer
    x = 291,319.32

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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.