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Finding the Fourth Proportional to 325,486.15, 488,051.24 and 258,448.81

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Solution

The fourth proportional to 325,486.15, 488,051.24 and 258,448.81 is: 387,531.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,486.15 : 488,051.24 = 258,448.81 : x
  2. Step 2: Convert to fraction form
    325,486.15/488,051.24 = 258,448.81/x
  3. Step 3: Cross multiply
    325,486.15x = 488,051.24 × 258,448.81
  4. Step 4: Simplify right side
    325,486.15x = 126,136,259,756.77
  5. Step 5: Solve for x
    x = 126,136,259,756.77/325,486.15
  6. Step 6: Final answer
    x = 387,531.89

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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.