Home / 383,631.95-529,399.95-211,557.17

Finding the Fourth Proportional to 383,631.95, 529,399.95 and 211,557.17

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Solution

The fourth proportional to 383,631.95, 529,399.95 and 211,557.17 is: 291,942.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,631.95 : 529,399.95 = 211,557.17 : x
  2. Step 2: Convert to fraction form
    383,631.95/529,399.95 = 211,557.17/x
  3. Step 3: Cross multiply
    383,631.95x = 529,399.95 × 211,557.17
  4. Step 4: Simplify right side
    383,631.95x = 111,998,353,962.44
  5. Step 5: Solve for x
    x = 111,998,353,962.44/383,631.95
  6. Step 6: Final answer
    x = 291,942.20

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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.