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Finding the Fourth Proportional to 607,208, 837,947.52 and 338,936

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Solution

The fourth proportional to 607,208, 837,947.52 and 338,936 is: 467,731.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,208 : 837,947.52 = 338,936 : x
  2. Step 2: Convert to fraction form
    607,208/837,947.52 = 338,936/x
  3. Step 3: Cross multiply
    607,208x = 837,947.52 × 338,936
  4. Step 4: Simplify right side
    607,208x = 284,010,580,638.72
  5. Step 5: Solve for x
    x = 284,010,580,638.72/607,208
  6. Step 6: Final answer
    x = 467,731.95

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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.