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Finding the Fourth Proportional to 508,447.33, 701,986.01 and 315,060.26

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Solution

The fourth proportional to 508,447.33, 701,986.01 and 315,060.26 is: 434,986.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,447.33 : 701,986.01 = 315,060.26 : x
  2. Step 2: Convert to fraction form
    508,447.33/701,986.01 = 315,060.26/x
  3. Step 3: Cross multiply
    508,447.33x = 701,986.01 × 315,060.26
  4. Step 4: Simplify right side
    508,447.33x = 221,167,889,741.73
  5. Step 5: Solve for x
    x = 221,167,889,741.73/508,447.33
  6. Step 6: Final answer
    x = 434,986.83

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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.