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Finding the Fourth Proportional to 372,509.28, 555,638.04 and 341,940.96

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Solution

The fourth proportional to 372,509.28, 555,638.04 and 341,940.96 is: 510,042.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,509.28 : 555,638.04 = 341,940.96 : x
  2. Step 2: Convert to fraction form
    372,509.28/555,638.04 = 341,940.96/x
  3. Step 3: Cross multiply
    372,509.28x = 555,638.04 × 341,940.96
  4. Step 4: Simplify right side
    372,509.28x = 189,995,404,810.12
  5. Step 5: Solve for x
    x = 189,995,404,810.12/372,509.28
  6. Step 6: Final answer
    x = 510,042.07

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.