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Finding the Fourth Proportional to 368,566.54, 508,620.77 and 207,421.58

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Solution

The fourth proportional to 368,566.54, 508,620.77 and 207,421.58 is: 286,241.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,566.54 : 508,620.77 = 207,421.58 : x
  2. Step 2: Convert to fraction form
    368,566.54/508,620.77 = 207,421.58/x
  3. Step 3: Cross multiply
    368,566.54x = 508,620.77 × 207,421.58
  4. Step 4: Simplify right side
    368,566.54x = 105,498,923,734.22
  5. Step 5: Solve for x
    x = 105,498,923,734.22/368,566.54
  6. Step 6: Final answer
    x = 286,241.19

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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.