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Finding the Fourth Proportional to 552,656.20, 762,611.20 and 310,933.58

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Solution

The fourth proportional to 552,656.20, 762,611.20 and 310,933.58 is: 429,057.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,656.20 : 762,611.20 = 310,933.58 : x
  2. Step 2: Convert to fraction form
    552,656.20/762,611.20 = 310,933.58/x
  3. Step 3: Cross multiply
    552,656.20x = 762,611.20 × 310,933.58
  4. Step 4: Simplify right side
    552,656.20x = 237,121,430,564.10
  5. Step 5: Solve for x
    x = 237,121,430,564.10/552,656.20
  6. Step 6: Final answer
    x = 429,057.76

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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.