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Finding the Fourth Proportional to 578,894.31, 798,874.13 and 352,539.81

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Solution

The fourth proportional to 578,894.31, 798,874.13 and 352,539.81 is: 486,504.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,894.31 : 798,874.13 = 352,539.81 : x
  2. Step 2: Convert to fraction form
    578,894.31/798,874.13 = 352,539.81/x
  3. Step 3: Cross multiply
    578,894.31x = 798,874.13 × 352,539.81
  4. Step 4: Simplify right side
    578,894.31x = 281,634,932,241.42
  5. Step 5: Solve for x
    x = 281,634,932,241.42/578,894.31
  6. Step 6: Final answer
    x = 486,504.92

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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.