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Finding the Fourth Proportional to 572,004.92, 789,481.68 and 330,326.84

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Solution

The fourth proportional to 572,004.92, 789,481.68 and 330,326.84 is: 455,917.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,004.92 : 789,481.68 = 330,326.84 : x
  2. Step 2: Convert to fraction form
    572,004.92/789,481.68 = 330,326.84/x
  3. Step 3: Cross multiply
    572,004.92x = 789,481.68 × 330,326.84
  4. Step 4: Simplify right side
    572,004.92x = 260,786,988,592.29
  5. Step 5: Solve for x
    x = 260,786,988,592.29/572,004.92
  6. Step 6: Final answer
    x = 455,917.39

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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.