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Finding the Fourth Proportional to 374,840.54, 516,741.89 and 267,223.74

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Solution

The fourth proportional to 374,840.54, 516,741.89 and 267,223.74 is: 368,385.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,840.54 : 516,741.89 = 267,223.74 : x
  2. Step 2: Convert to fraction form
    374,840.54/516,741.89 = 267,223.74/x
  3. Step 3: Cross multiply
    374,840.54x = 516,741.89 × 267,223.74
  4. Step 4: Simplify right side
    374,840.54x = 138,085,697,186.57
  5. Step 5: Solve for x
    x = 138,085,697,186.57/374,840.54
  6. Step 6: Final answer
    x = 368,385.17

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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.