Home / 383,811.80-529,876.70-266,151.20

Finding the Fourth Proportional to 383,811.80, 529,876.70 and 266,151.20

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Solution

The fourth proportional to 383,811.80, 529,876.70 and 266,151.20 is: 367,438.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,811.80 : 529,876.70 = 266,151.20 : x
  2. Step 2: Convert to fraction form
    383,811.80/529,876.70 = 266,151.20/x
  3. Step 3: Cross multiply
    383,811.80x = 529,876.70 × 266,151.20
  4. Step 4: Simplify right side
    383,811.80x = 141,027,319,557.04
  5. Step 5: Solve for x
    x = 141,027,319,557.04/383,811.80
  6. Step 6: Final answer
    x = 367,438.73

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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.