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Finding the Fourth Proportional to 371,072.12, 511,851.69 and 327,913.11

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Solution

The fourth proportional to 371,072.12, 511,851.69 and 327,913.11 is: 452,318.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,072.12 : 511,851.69 = 327,913.11 : x
  2. Step 2: Convert to fraction form
    371,072.12/511,851.69 = 327,913.11/x
  3. Step 3: Cross multiply
    371,072.12x = 511,851.69 × 327,913.11
  4. Step 4: Simplify right side
    371,072.12x = 167,842,879,526.66
  5. Step 5: Solve for x
    x = 167,842,879,526.66/371,072.12
  6. Step 6: Final answer
    x = 452,318.76

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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.