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Finding the Fourth Proportional to 372,391.34, 558,143.12 and 259,460.06

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Solution

The fourth proportional to 372,391.34, 558,143.12 and 259,460.06 is: 388,880.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,391.34 : 558,143.12 = 259,460.06 : x
  2. Step 2: Convert to fraction form
    372,391.34/558,143.12 = 259,460.06/x
  3. Step 3: Cross multiply
    372,391.34x = 558,143.12 × 259,460.06
  4. Step 4: Simplify right side
    372,391.34x = 144,815,845,261.72
  5. Step 5: Solve for x
    x = 144,815,845,261.72/372,391.34
  6. Step 6: Final answer
    x = 388,880.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.