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Finding the Fourth Proportional to 616,531.80, 923,415.30 and 533,587.80

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Solution

The fourth proportional to 616,531.80, 923,415.30 and 533,587.80 is: 799,185.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,531.80 : 923,415.30 = 533,587.80 : x
  2. Step 2: Convert to fraction form
    616,531.80/923,415.30 = 533,587.80/x
  3. Step 3: Cross multiply
    616,531.80x = 923,415.30 × 533,587.80
  4. Step 4: Simplify right side
    616,531.80x = 492,723,138,413.34
  5. Step 5: Solve for x
    x = 492,723,138,413.34/616,531.80
  6. Step 6: Final answer
    x = 799,185.28

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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.