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Finding the Fourth Proportional to 326,907.09, 489,447.02 and 176,608.89

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Solution

The fourth proportional to 326,907.09, 489,447.02 and 176,608.89 is: 264,419.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,907.09 : 489,447.02 = 176,608.89 : x
  2. Step 2: Convert to fraction form
    326,907.09/489,447.02 = 176,608.89/x
  3. Step 3: Cross multiply
    326,907.09x = 489,447.02 × 176,608.89
  4. Step 4: Simplify right side
    326,907.09x = 86,440,695,357.53
  5. Step 5: Solve for x
    x = 86,440,695,357.53/326,907.09
  6. Step 6: Final answer
    x = 264,419.76

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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.