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Finding the Fourth Proportional to 676,468.86, 933,490.87 and 370,529.43

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Solution

The fourth proportional to 676,468.86, 933,490.87 and 370,529.43 is: 511,310.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,468.86 : 933,490.87 = 370,529.43 : x
  2. Step 2: Convert to fraction form
    676,468.86/933,490.87 = 370,529.43/x
  3. Step 3: Cross multiply
    676,468.86x = 933,490.87 × 370,529.43
  4. Step 4: Simplify right side
    676,468.86x = 345,885,839,971.30
  5. Step 5: Solve for x
    x = 345,885,839,971.30/676,468.86
  6. Step 6: Final answer
    x = 511,310.81

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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.