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Finding the Fourth Proportional to 328,495.16, 453,255.65 and 188,766.75

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Solution

The fourth proportional to 328,495.16, 453,255.65 and 188,766.75 is: 260,459.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,495.16 : 453,255.65 = 188,766.75 : x
  2. Step 2: Convert to fraction form
    328,495.16/453,255.65 = 188,766.75/x
  3. Step 3: Cross multiply
    328,495.16x = 453,255.65 × 188,766.75
  4. Step 4: Simplify right side
    328,495.16x = 85,559,597,433.39
  5. Step 5: Solve for x
    x = 85,559,597,433.39/328,495.16
  6. Step 6: Final answer
    x = 260,459.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.