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Finding the Fourth Proportional to 496,818.28, 685,698.63 and 292,857.08

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Solution

The fourth proportional to 496,818.28, 685,698.63 and 292,857.08 is: 404,195.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,818.28 : 685,698.63 = 292,857.08 : x
  2. Step 2: Convert to fraction form
    496,818.28/685,698.63 = 292,857.08/x
  3. Step 3: Cross multiply
    496,818.28x = 685,698.63 × 292,857.08
  4. Step 4: Simplify right side
    496,818.28x = 200,811,698,541.80
  5. Step 5: Solve for x
    x = 200,811,698,541.80/496,818.28
  6. Step 6: Final answer
    x = 404,195.47

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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.