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Finding the Fourth Proportional to 504,664.84, 696,428.68 and 275,223.88

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Solution

The fourth proportional to 504,664.84, 696,428.68 and 275,223.88 is: 379,804.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,664.84 : 696,428.68 = 275,223.88 : x
  2. Step 2: Convert to fraction form
    504,664.84/696,428.68 = 275,223.88/x
  3. Step 3: Cross multiply
    504,664.84x = 696,428.68 × 275,223.88
  4. Step 4: Simplify right side
    504,664.84x = 191,673,803,452.88
  5. Step 5: Solve for x
    x = 191,673,803,452.88/504,664.84
  6. Step 6: Final answer
    x = 379,804.16

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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.