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Finding the Fourth Proportional to 382,906.84, 528,461.02 and 219,627.04

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Solution

The fourth proportional to 382,906.84, 528,461.02 and 219,627.04 is: 303,113.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,906.84 : 528,461.02 = 219,627.04 : x
  2. Step 2: Convert to fraction form
    382,906.84/528,461.02 = 219,627.04/x
  3. Step 3: Cross multiply
    382,906.84x = 528,461.02 × 219,627.04
  4. Step 4: Simplify right side
    382,906.84x = 116,064,329,577.98
  5. Step 5: Solve for x
    x = 116,064,329,577.98/382,906.84
  6. Step 6: Final answer
    x = 303,113.75

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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.