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Finding the Fourth Proportional to 484,635.84, 668,788.32 and 269,774.40

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Solution

The fourth proportional to 484,635.84, 668,788.32 and 269,774.40 is: 372,283.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,635.84 : 668,788.32 = 269,774.40 : x
  2. Step 2: Convert to fraction form
    484,635.84/668,788.32 = 269,774.40/x
  3. Step 3: Cross multiply
    484,635.84x = 668,788.32 × 269,774.40
  4. Step 4: Simplify right side
    484,635.84x = 180,421,967,755.01
  5. Step 5: Solve for x
    x = 180,421,967,755.01/484,635.84
  6. Step 6: Final answer
    x = 372,283.58

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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.