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Finding the Fourth Proportional to 326,066.40, 488,574.72 and 201,144.96

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Solution

The fourth proportional to 326,066.40, 488,574.72 and 201,144.96 is: 301,393.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,066.40 : 488,574.72 = 201,144.96 : x
  2. Step 2: Convert to fraction form
    326,066.40/488,574.72 = 201,144.96/x
  3. Step 3: Cross multiply
    326,066.40x = 488,574.72 × 201,144.96
  4. Step 4: Simplify right side
    326,066.40x = 98,274,342,511.41
  5. Step 5: Solve for x
    x = 98,274,342,511.41/326,066.40
  6. Step 6: Final answer
    x = 301,393.65

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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.