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Finding the Fourth Proportional to 694,259.93, 957,693.20 and 403,838.80

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Solution

The fourth proportional to 694,259.93, 957,693.20 and 403,838.80 is: 557,073.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,259.93 : 957,693.20 = 403,838.80 : x
  2. Step 2: Convert to fraction form
    694,259.93/957,693.20 = 403,838.80/x
  3. Step 3: Cross multiply
    694,259.93x = 957,693.20 × 403,838.80
  4. Step 4: Simplify right side
    694,259.93x = 386,753,668,242.73
  5. Step 5: Solve for x
    x = 386,753,668,242.73/694,259.93
  6. Step 6: Final answer
    x = 557,073.30

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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.