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Finding the Fourth Proportional to 488,898.15, 674,710.62 and 274,038.26

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Solution

The fourth proportional to 488,898.15, 674,710.62 and 274,038.26 is: 378,190.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,898.15 : 674,710.62 = 274,038.26 : x
  2. Step 2: Convert to fraction form
    488,898.15/674,710.62 = 274,038.26/x
  3. Step 3: Cross multiply
    488,898.15x = 674,710.62 × 274,038.26
  4. Step 4: Simplify right side
    488,898.15x = 184,896,520,934.77
  5. Step 5: Solve for x
    x = 184,896,520,934.77/488,898.15
  6. Step 6: Final answer
    x = 378,190.27

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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.