Home / 383,300.60-528,977.98-211,218.28

Finding the Fourth Proportional to 383,300.60, 528,977.98 and 211,218.28

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Solution

The fourth proportional to 383,300.60, 528,977.98 and 211,218.28 is: 291,493.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,300.60 : 528,977.98 = 211,218.28 : x
  2. Step 2: Convert to fraction form
    383,300.60/528,977.98 = 211,218.28/x
  3. Step 3: Cross multiply
    383,300.60x = 528,977.98 × 211,218.28
  4. Step 4: Simplify right side
    383,300.60x = 111,729,819,093.47
  5. Step 5: Solve for x
    x = 111,729,819,093.47/383,300.60
  6. Step 6: Final answer
    x = 291,493.98

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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.