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Finding the Fourth Proportional to 527,755.56, 791,832.60 and 317,541.12

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Solution

The fourth proportional to 527,755.56, 791,832.60 and 317,541.12 is: 476,431.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,755.56 : 791,832.60 = 317,541.12 : x
  2. Step 2: Convert to fraction form
    527,755.56/791,832.60 = 317,541.12/x
  3. Step 3: Cross multiply
    527,755.56x = 791,832.60 × 317,541.12
  4. Step 4: Simplify right side
    527,755.56x = 251,439,410,656.51
  5. Step 5: Solve for x
    x = 251,439,410,656.51/527,755.56
  6. Step 6: Final answer
    x = 476,431.57

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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.