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Finding the Fourth Proportional to 298,934.22, 446,419.80 and 262,717.50

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Solution

The fourth proportional to 298,934.22, 446,419.80 and 262,717.50 is: 392,334.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,934.22 : 446,419.80 = 262,717.50 : x
  2. Step 2: Convert to fraction form
    298,934.22/446,419.80 = 262,717.50/x
  3. Step 3: Cross multiply
    298,934.22x = 446,419.80 × 262,717.50
  4. Step 4: Simplify right side
    298,934.22x = 117,282,293,806.50
  5. Step 5: Solve for x
    x = 117,282,293,806.50/298,934.22
  6. Step 6: Final answer
    x = 392,334.79

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.