Home / 386,440.72-533,187.30-223,057.24

Finding the Fourth Proportional to 386,440.72, 533,187.30 and 223,057.24

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Solution

The fourth proportional to 386,440.72, 533,187.30 and 223,057.24 is: 307,760.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,440.72 : 533,187.30 = 223,057.24 : x
  2. Step 2: Convert to fraction form
    386,440.72/533,187.30 = 223,057.24/x
  3. Step 3: Cross multiply
    386,440.72x = 533,187.30 × 223,057.24
  4. Step 4: Simplify right side
    386,440.72x = 118,931,287,541.05
  5. Step 5: Solve for x
    x = 118,931,287,541.05/386,440.72
  6. Step 6: Final answer
    x = 307,760.75

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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.