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Finding the Fourth Proportional to 487,984.75, 673,418.84 and 273,124.80

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Solution

The fourth proportional to 487,984.75, 673,418.84 and 273,124.80 is: 376,912.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,984.75 : 673,418.84 = 273,124.80 : x
  2. Step 2: Convert to fraction form
    487,984.75/673,418.84 = 273,124.80/x
  3. Step 3: Cross multiply
    487,984.75x = 673,418.84 × 273,124.80
  4. Step 4: Simplify right side
    487,984.75x = 183,927,384,625.61
  5. Step 5: Solve for x
    x = 183,927,384,625.61/487,984.75
  6. Step 6: Final answer
    x = 376,912.16

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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.