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Finding the Fourth Proportional to 644,960.43, 967,557.06 and 265,674.15

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Solution

The fourth proportional to 644,960.43, 967,557.06 and 265,674.15 is: 398,559.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,960.43 : 967,557.06 = 265,674.15 : x
  2. Step 2: Convert to fraction form
    644,960.43/967,557.06 = 265,674.15/x
  3. Step 3: Cross multiply
    644,960.43x = 967,557.06 × 265,674.15
  4. Step 4: Simplify right side
    644,960.43x = 257,054,899,492.00
  5. Step 5: Solve for x
    x = 257,054,899,492.00/644,960.43
  6. Step 6: Final answer
    x = 398,559.18

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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.