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Finding the Fourth Proportional to 581,015.69, 865,683.80 and 548,383.22

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Solution

The fourth proportional to 581,015.69, 865,683.80 and 548,383.22 is: 817,063.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,015.69 : 865,683.80 = 548,383.22 : x
  2. Step 2: Convert to fraction form
    581,015.69/865,683.80 = 548,383.22/x
  3. Step 3: Cross multiply
    581,015.69x = 865,683.80 × 548,383.22
  4. Step 4: Simplify right side
    581,015.69x = 474,726,469,745.84
  5. Step 5: Solve for x
    x = 474,726,469,745.84/581,015.69
  6. Step 6: Final answer
    x = 817,063.08

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.