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Finding the Fourth Proportional to 634,892.55, 876,183.62 and 348,410.31

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Solution

The fourth proportional to 634,892.55, 876,183.62 and 348,410.31 is: 480,823.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,892.55 : 876,183.62 = 348,410.31 : x
  2. Step 2: Convert to fraction form
    634,892.55/876,183.62 = 348,410.31/x
  3. Step 3: Cross multiply
    634,892.55x = 876,183.62 × 348,410.31
  4. Step 4: Simplify right side
    634,892.55x = 305,271,404,919.07
  5. Step 5: Solve for x
    x = 305,271,404,919.07/634,892.55
  6. Step 6: Final answer
    x = 480,823.73

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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.