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Finding the Fourth Proportional to 488,003.47, 673,444.63 and 273,143.48

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Solution

The fourth proportional to 488,003.47, 673,444.63 and 273,143.48 is: 376,937.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,003.47 : 673,444.63 = 273,143.48 : x
  2. Step 2: Convert to fraction form
    488,003.47/673,444.63 = 273,143.48/x
  3. Step 3: Cross multiply
    488,003.47x = 673,444.63 × 273,143.48
  4. Step 4: Simplify right side
    488,003.47x = 183,947,009,825.51
  5. Step 5: Solve for x
    x = 183,947,009,825.51/488,003.47
  6. Step 6: Final answer
    x = 376,937.91

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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.