Home / 383,135.55-528,768.58-211,071.14

Finding the Fourth Proportional to 383,135.55, 528,768.58 and 211,071.14

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Solution

The fourth proportional to 383,135.55, 528,768.58 and 211,071.14 is: 291,301.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,135.55 : 528,768.58 = 211,071.14 : x
  2. Step 2: Convert to fraction form
    383,135.55/528,768.58 = 211,071.14/x
  3. Step 3: Cross multiply
    383,135.55x = 528,768.58 × 211,071.14
  4. Step 4: Simplify right side
    383,135.55x = 111,607,785,923.80
  5. Step 5: Solve for x
    x = 111,607,785,923.80/383,135.55
  6. Step 6: Final answer
    x = 291,301.05

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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.