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Finding the Fourth Proportional to 644,954.40, 967,182.66 and 212,568.03

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Solution

The fourth proportional to 644,954.40, 967,182.66 and 212,568.03 is: 318,770.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,954.40 : 967,182.66 = 212,568.03 : x
  2. Step 2: Convert to fraction form
    644,954.40/967,182.66 = 212,568.03/x
  3. Step 3: Cross multiply
    644,954.40x = 967,182.66 × 212,568.03
  4. Step 4: Simplify right side
    644,954.40x = 205,592,112,686.36
  5. Step 5: Solve for x
    x = 205,592,112,686.36/644,954.40
  6. Step 6: Final answer
    x = 318,770.00

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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.