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Finding the Fourth Proportional to 475,618.56, 656,354.49 and 257,826.56

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Solution

The fourth proportional to 475,618.56, 656,354.49 and 257,826.56 is: 355,801.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,618.56 : 656,354.49 = 257,826.56 : x
  2. Step 2: Convert to fraction form
    475,618.56/656,354.49 = 257,826.56/x
  3. Step 3: Cross multiply
    475,618.56x = 656,354.49 × 257,826.56
  4. Step 4: Simplify right side
    475,618.56x = 169,225,620,297.25
  5. Step 5: Solve for x
    x = 169,225,620,297.25/475,618.56
  6. Step 6: Final answer
    x = 355,801.13

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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.