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Finding the Fourth Proportional to 623,871.88, 860,945.78 and 337,391.96

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Solution

The fourth proportional to 623,871.88, 860,945.78 and 337,391.96 is: 465,602.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,871.88 : 860,945.78 = 337,391.96 : x
  2. Step 2: Convert to fraction form
    623,871.88/860,945.78 = 337,391.96/x
  3. Step 3: Cross multiply
    623,871.88x = 860,945.78 × 337,391.96
  4. Step 4: Simplify right side
    623,871.88x = 290,476,184,167.93
  5. Step 5: Solve for x
    x = 290,476,184,167.93/623,871.88
  6. Step 6: Final answer
    x = 465,602.30

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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.