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Finding the Fourth Proportional to 516,920.54, 713,383.00 and 290,580.62

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Solution

The fourth proportional to 516,920.54, 713,383.00 and 290,580.62 is: 401,019.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,920.54 : 713,383.00 = 290,580.62 : x
  2. Step 2: Convert to fraction form
    516,920.54/713,383.00 = 290,580.62/x
  3. Step 3: Cross multiply
    516,920.54x = 713,383.00 × 290,580.62
  4. Step 4: Simplify right side
    516,920.54x = 207,295,270,144.09
  5. Step 5: Solve for x
    x = 207,295,270,144.09/516,920.54
  6. Step 6: Final answer
    x = 401,019.61

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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.