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Finding the Fourth Proportional to 488,509.07, 674,135.10 and 273,656.81

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Solution

The fourth proportional to 488,509.07, 674,135.10 and 273,656.81 is: 377,642.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,509.07 : 674,135.10 = 273,656.81 : x
  2. Step 2: Convert to fraction form
    488,509.07/674,135.10 = 273,656.81/x
  3. Step 3: Cross multiply
    488,509.07x = 674,135.10 × 273,656.81
  4. Step 4: Simplify right side
    488,509.07x = 184,481,657,604.36
  5. Step 5: Solve for x
    x = 184,481,657,604.36/488,509.07
  6. Step 6: Final answer
    x = 377,642.24

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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.