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Finding the Fourth Proportional to 463,907.08, 640,180.90 and 272,932.76

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Solution

The fourth proportional to 463,907.08, 640,180.90 and 272,932.76 is: 376,640.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,907.08 : 640,180.90 = 272,932.76 : x
  2. Step 2: Convert to fraction form
    463,907.08/640,180.90 = 272,932.76/x
  3. Step 3: Cross multiply
    463,907.08x = 640,180.90 × 272,932.76
  4. Step 4: Simplify right side
    463,907.08x = 174,726,339,936.28
  5. Step 5: Solve for x
    x = 174,726,339,936.28/463,907.08
  6. Step 6: Final answer
    x = 376,640.81

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1.5x scale

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.