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Finding the Fourth Proportional to 319,656.36, 479,567.58 and 262,823.94

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Solution

The fourth proportional to 319,656.36, 479,567.58 and 262,823.94 is: 394,304.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,656.36 : 479,567.58 = 262,823.94 : x
  2. Step 2: Convert to fraction form
    319,656.36/479,567.58 = 262,823.94/x
  3. Step 3: Cross multiply
    319,656.36x = 479,567.58 × 262,823.94
  4. Step 4: Simplify right side
    319,656.36x = 126,041,840,871.87
  5. Step 5: Solve for x
    x = 126,041,840,871.87/319,656.36
  6. Step 6: Final answer
    x = 394,304.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.