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Finding the Fourth Proportional to 508,179.64, 762,113.40 and 351,415.48

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Solution

The fourth proportional to 508,179.64, 762,113.40 and 351,415.48 is: 527,015.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,179.64 : 762,113.40 = 351,415.48 : x
  2. Step 2: Convert to fraction form
    508,179.64/762,113.40 = 351,415.48/x
  3. Step 3: Cross multiply
    508,179.64x = 762,113.40 × 351,415.48
  4. Step 4: Simplify right side
    508,179.64x = 267,818,446,275.43
  5. Step 5: Solve for x
    x = 267,818,446,275.43/508,179.64
  6. Step 6: Final answer
    x = 527,015.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.