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Finding the Fourth Proportional to 468,640.20, 702,960.30 and 450,269.40

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Solution

The fourth proportional to 468,640.20, 702,960.30 and 450,269.40 is: 675,404.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,640.20 : 702,960.30 = 450,269.40 : x
  2. Step 2: Convert to fraction form
    468,640.20/702,960.30 = 450,269.40/x
  3. Step 3: Cross multiply
    468,640.20x = 702,960.30 × 450,269.40
  4. Step 4: Simplify right side
    468,640.20x = 316,521,512,504.82
  5. Step 5: Solve for x
    x = 316,521,512,504.82/468,640.20
  6. Step 6: Final answer
    x = 675,404.10

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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.