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Finding the Fourth Proportional to 634,924.98, 876,212.64 and 348,442.56

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Solution

The fourth proportional to 634,924.98, 876,212.64 and 348,442.56 is: 480,859.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,924.98 : 876,212.64 = 348,442.56 : x
  2. Step 2: Convert to fraction form
    634,924.98/876,212.64 = 348,442.56/x
  3. Step 3: Cross multiply
    634,924.98x = 876,212.64 × 348,442.56
  4. Step 4: Simplify right side
    634,924.98x = 305,309,775,385.96
  5. Step 5: Solve for x
    x = 305,309,775,385.96/634,924.98
  6. Step 6: Final answer
    x = 480,859.61

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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.