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Finding the Fourth Proportional to 634,515.05, 875,672.42 and 348,035.14

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Solution

The fourth proportional to 634,515.05, 875,672.42 and 348,035.14 is: 480,311.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,515.05 : 875,672.42 = 348,035.14 : x
  2. Step 2: Convert to fraction form
    634,515.05/875,672.42 = 348,035.14/x
  3. Step 3: Cross multiply
    634,515.05x = 875,672.42 × 348,035.14
  4. Step 4: Simplify right side
    634,515.05x = 304,764,773,288.84
  5. Step 5: Solve for x
    x = 304,764,773,288.84/634,515.05
  6. Step 6: Final answer
    x = 480,311.34

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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.