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Finding the Fourth Proportional to 623,603.70, 860,567.76 and 337,121.28

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Solution

The fourth proportional to 623,603.70, 860,567.76 and 337,121.28 is: 465,224.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,603.70 : 860,567.76 = 337,121.28 : x
  2. Step 2: Convert to fraction form
    623,603.70/860,567.76 = 337,121.28/x
  3. Step 3: Cross multiply
    623,603.70x = 860,567.76 × 337,121.28
  4. Step 4: Simplify right side
    623,603.70x = 290,115,704,777.93
  5. Step 5: Solve for x
    x = 290,115,704,777.93/623,603.70
  6. Step 6: Final answer
    x = 465,224.48

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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.