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Finding the Fourth Proportional to 383,098.55, 528,675.99 and 222,047.01

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Solution

The fourth proportional to 383,098.55, 528,675.99 and 222,047.01 is: 306,424.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,098.55 : 528,675.99 = 222,047.01 : x
  2. Step 2: Convert to fraction form
    383,098.55/528,675.99 = 222,047.01/x
  3. Step 3: Cross multiply
    383,098.55x = 528,675.99 × 222,047.01
  4. Step 4: Simplify right side
    383,098.55x = 117,390,922,838.29
  5. Step 5: Solve for x
    x = 117,390,922,838.29/383,098.55
  6. Step 6: Final answer
    x = 306,424.87

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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.