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Finding the Fourth Proportional to 387,962.44, 535,634.10 and 265,659.46

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Solution

The fourth proportional to 387,962.44, 535,634.10 and 265,659.46 is: 366,778.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,962.44 : 535,634.10 = 265,659.46 : x
  2. Step 2: Convert to fraction form
    387,962.44/535,634.10 = 265,659.46/x
  3. Step 3: Cross multiply
    387,962.44x = 535,634.10 × 265,659.46
  4. Step 4: Simplify right side
    387,962.44x = 142,296,264,424.50
  5. Step 5: Solve for x
    x = 142,296,264,424.50/387,962.44
  6. Step 6: Final answer
    x = 366,778.46

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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.