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Finding the Fourth Proportional to 488,762.94, 674,496.20 and 270,978.27

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Solution

The fourth proportional to 488,762.94, 674,496.20 and 270,978.27 is: 373,951.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,762.94 : 674,496.20 = 270,978.27 : x
  2. Step 2: Convert to fraction form
    488,762.94/674,496.20 = 270,978.27/x
  3. Step 3: Cross multiply
    488,762.94x = 674,496.20 × 270,978.27
  4. Step 4: Simplify right side
    488,762.94x = 182,773,813,397.57
  5. Step 5: Solve for x
    x = 182,773,813,397.57/488,762.94
  6. Step 6: Final answer
    x = 373,951.87

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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.