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Finding the Fourth Proportional to 387,962.22, 535,633.84 and 265,659.26

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Solution

The fourth proportional to 387,962.22, 535,633.84 and 265,659.26 is: 366,778.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,962.22 : 535,633.84 = 265,659.26 : x
  2. Step 2: Convert to fraction form
    387,962.22/535,633.84 = 265,659.26/x
  3. Step 3: Cross multiply
    387,962.22x = 535,633.84 × 265,659.26
  4. Step 4: Simplify right side
    387,962.22x = 142,296,089,565.36
  5. Step 5: Solve for x
    x = 142,296,089,565.36/387,962.22
  6. Step 6: Final answer
    x = 366,778.22

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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.