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Finding the Fourth Proportional to 328,336.59, 453,085 and 190,504.86

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Solution

The fourth proportional to 328,336.59, 453,085 and 190,504.86 is: 262,885.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,336.59 : 453,085 = 190,504.86 : x
  2. Step 2: Convert to fraction form
    328,336.59/453,085 = 190,504.86/x
  3. Step 3: Cross multiply
    328,336.59x = 453,085 × 190,504.86
  4. Step 4: Simplify right side
    328,336.59x = 86,314,894,493.10
  5. Step 5: Solve for x
    x = 86,314,894,493.10/328,336.59
  6. Step 6: Final answer
    x = 262,885.40

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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.