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Finding the Fourth Proportional to 522,718.86, 721,605.48 and 350,573.82

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Solution

The fourth proportional to 522,718.86, 721,605.48 and 350,573.82 is: 483,961.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,718.86 : 721,605.48 = 350,573.82 : x
  2. Step 2: Convert to fraction form
    522,718.86/721,605.48 = 350,573.82/x
  3. Step 3: Cross multiply
    522,718.86x = 721,605.48 × 350,573.82
  4. Step 4: Simplify right side
    522,718.86x = 252,975,989,656.53
  5. Step 5: Solve for x
    x = 252,975,989,656.53/522,718.86
  6. Step 6: Final answer
    x = 483,961.86

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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.