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Finding the Fourth Proportional to 685,560.84, 945,917.37 and 440,673.54

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Solution

The fourth proportional to 685,560.84, 945,917.37 and 440,673.54 is: 608,028.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,560.84 : 945,917.37 = 440,673.54 : x
  2. Step 2: Convert to fraction form
    685,560.84/945,917.37 = 440,673.54/x
  3. Step 3: Cross multiply
    685,560.84x = 945,917.37 × 440,673.54
  4. Step 4: Simplify right side
    685,560.84x = 416,840,755,985.39
  5. Step 5: Solve for x
    x = 416,840,755,985.39/685,560.84
  6. Step 6: Final answer
    x = 608,028.83

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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.