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Finding the Fourth Proportional to 358,840.98, 495,200.72 and 197,694.62

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Solution

The fourth proportional to 358,840.98, 495,200.72 and 197,694.62 is: 272,818.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,840.98 : 495,200.72 = 197,694.62 : x
  2. Step 2: Convert to fraction form
    358,840.98/495,200.72 = 197,694.62/x
  3. Step 3: Cross multiply
    358,840.98x = 495,200.72 × 197,694.62
  4. Step 4: Simplify right side
    358,840.98x = 97,898,514,699.65
  5. Step 5: Solve for x
    x = 97,898,514,699.65/358,840.98
  6. Step 6: Final answer
    x = 272,818.66

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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.