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Finding the Fourth Proportional to 358,986.88, 495,399.40 and 197,842.04

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Solution

The fourth proportional to 358,986.88, 495,399.40 and 197,842.04 is: 273,020.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,986.88 : 495,399.40 = 197,842.04 : x
  2. Step 2: Convert to fraction form
    358,986.88/495,399.40 = 197,842.04/x
  3. Step 3: Cross multiply
    358,986.88x = 495,399.40 × 197,842.04
  4. Step 4: Simplify right side
    358,986.88x = 98,010,827,910.78
  5. Step 5: Solve for x
    x = 98,010,827,910.78/358,986.88
  6. Step 6: Final answer
    x = 273,020.64

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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.