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Finding the Fourth Proportional to 280,993.84, 387,653.79 and 184,220.89

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Solution

The fourth proportional to 280,993.84, 387,653.79 and 184,220.89 is: 254,147.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,993.84 : 387,653.79 = 184,220.89 : x
  2. Step 2: Convert to fraction form
    280,993.84/387,653.79 = 184,220.89/x
  3. Step 3: Cross multiply
    280,993.84x = 387,653.79 × 184,220.89
  4. Step 4: Simplify right side
    280,993.84x = 71,413,926,205.67
  5. Step 5: Solve for x
    x = 71,413,926,205.67/280,993.84
  6. Step 6: Final answer
    x = 254,147.66

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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.