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Finding the Fourth Proportional to 298,608.45, 446,860.65 and 186,341.49

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Solution

The fourth proportional to 298,608.45, 446,860.65 and 186,341.49 is: 278,855.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,608.45 : 446,860.65 = 186,341.49 : x
  2. Step 2: Convert to fraction form
    298,608.45/446,860.65 = 186,341.49/x
  3. Step 3: Cross multiply
    298,608.45x = 446,860.65 × 186,341.49
  4. Step 4: Simplify right side
    298,608.45x = 83,268,679,343.37
  5. Step 5: Solve for x
    x = 83,268,679,343.37/298,608.45
  6. Step 6: Final answer
    x = 278,855.74

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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.