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Finding the Fourth Proportional to 374,385.63, 517,078.35 and 251,664.93

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Solution

The fourth proportional to 374,385.63, 517,078.35 and 251,664.93 is: 347,584.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,385.63 : 517,078.35 = 251,664.93 : x
  2. Step 2: Convert to fraction form
    374,385.63/517,078.35 = 251,664.93/x
  3. Step 3: Cross multiply
    374,385.63x = 517,078.35 × 251,664.93
  4. Step 4: Simplify right side
    374,385.63x = 130,130,486,757.27
  5. Step 5: Solve for x
    x = 130,130,486,757.27/374,385.63
  6. Step 6: Final answer
    x = 347,584.08

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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.