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Finding the Fourth Proportional to 575,892.53, 863,166.38 and 433,279.78

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Solution

The fourth proportional to 575,892.53, 863,166.38 and 433,279.78 is: 649,413.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,892.53 : 863,166.38 = 433,279.78 : x
  2. Step 2: Convert to fraction form
    575,892.53/863,166.38 = 433,279.78/x
  3. Step 3: Cross multiply
    575,892.53x = 863,166.38 × 433,279.78
  4. Step 4: Simplify right side
    575,892.53x = 373,992,539,760.79
  5. Step 5: Solve for x
    x = 373,992,539,760.79/575,892.53
  6. Step 6: Final answer
    x = 649,413.77

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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.