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Finding the Fourth Proportional to 488,866.32, 674,633.40 and 274,006.44

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Solution

The fourth proportional to 488,866.32, 674,633.40 and 274,006.44 is: 378,127.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,866.32 : 674,633.40 = 274,006.44 : x
  2. Step 2: Convert to fraction form
    488,866.32/674,633.40 = 274,006.44/x
  3. Step 3: Cross multiply
    488,866.32x = 674,633.40 × 274,006.44
  4. Step 4: Simplify right side
    488,866.32x = 184,853,896,239.10
  5. Step 5: Solve for x
    x = 184,853,896,239.10/488,866.32
  6. Step 6: Final answer
    x = 378,127.70

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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.