Home / 383,165.63-528,784.91-213,399.75

Finding the Fourth Proportional to 383,165.63, 528,784.91 and 213,399.75

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Solution

The fourth proportional to 383,165.63, 528,784.91 and 213,399.75 is: 294,500.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,165.63 : 528,784.91 = 213,399.75 : x
  2. Step 2: Convert to fraction form
    383,165.63/528,784.91 = 213,399.75/x
  3. Step 3: Cross multiply
    383,165.63x = 528,784.91 × 213,399.75
  4. Step 4: Simplify right side
    383,165.63x = 112,842,567,597.77
  5. Step 5: Solve for x
    x = 112,842,567,597.77/383,165.63
  6. Step 6: Final answer
    x = 294,500.76

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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.