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Finding the Fourth Proportional to 447,087.91, 616,873.32 and 283,684.84

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Solution

The fourth proportional to 447,087.91, 616,873.32 and 283,684.84 is: 391,416.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,087.91 : 616,873.32 = 283,684.84 : x
  2. Step 2: Convert to fraction form
    447,087.91/616,873.32 = 283,684.84/x
  3. Step 3: Cross multiply
    447,087.91x = 616,873.32 × 283,684.84
  4. Step 4: Simplify right side
    447,087.91x = 174,997,609,084.47
  5. Step 5: Solve for x
    x = 174,997,609,084.47/447,087.91
  6. Step 6: Final answer
    x = 391,416.55

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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.