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Finding the Fourth Proportional to 467,881.09, 645,665.12 and 276,897.67

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Solution

The fourth proportional to 467,881.09, 645,665.12 and 276,897.67 is: 382,112.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,881.09 : 645,665.12 = 276,897.67 : x
  2. Step 2: Convert to fraction form
    467,881.09/645,665.12 = 276,897.67/x
  3. Step 3: Cross multiply
    467,881.09x = 645,665.12 × 276,897.67
  4. Step 4: Simplify right side
    467,881.09x = 178,783,165,943.78
  5. Step 5: Solve for x
    x = 178,783,165,943.78/467,881.09
  6. Step 6: Final answer
    x = 382,112.40

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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.