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Finding the Fourth Proportional to 477,135.51, 658,448.39 and 273,189.57

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Solution

The fourth proportional to 477,135.51, 658,448.39 and 273,189.57 is: 377,002.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,135.51 : 658,448.39 = 273,189.57 : x
  2. Step 2: Convert to fraction form
    477,135.51/658,448.39 = 273,189.57/x
  3. Step 3: Cross multiply
    477,135.51x = 658,448.39 × 273,189.57
  4. Step 4: Simplify right side
    477,135.51x = 179,881,231,165.34
  5. Step 5: Solve for x
    x = 179,881,231,165.34/477,135.51
  6. Step 6: Final answer
    x = 377,002.40

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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.