Home / 386,516.94-533,291.87-223,133.42

Finding the Fourth Proportional to 386,516.94, 533,291.87 and 223,133.42

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Solution

The fourth proportional to 386,516.94, 533,291.87 and 223,133.42 is: 307,865.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,516.94 : 533,291.87 = 223,133.42 : x
  2. Step 2: Convert to fraction form
    386,516.94/533,291.87 = 223,133.42/x
  3. Step 3: Cross multiply
    386,516.94x = 533,291.87 × 223,133.42
  4. Step 4: Simplify right side
    386,516.94x = 118,995,238,811.30
  5. Step 5: Solve for x
    x = 118,995,238,811.30/386,516.94
  6. Step 6: Final answer
    x = 307,865.52

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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.