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Finding the Fourth Proportional to 591,093.90, 885,328.65 and 486,117.90

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Solution

The fourth proportional to 591,093.90, 885,328.65 and 486,117.90 is: 728,097.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,093.90 : 885,328.65 = 486,117.90 : x
  2. Step 2: Convert to fraction form
    591,093.90/885,328.65 = 486,117.90/x
  3. Step 3: Cross multiply
    591,093.90x = 885,328.65 × 486,117.90
  4. Step 4: Simplify right side
    591,093.90x = 430,374,104,147.84
  5. Step 5: Solve for x
    x = 430,374,104,147.84/591,093.90
  6. Step 6: Final answer
    x = 728,097.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.