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Finding the Fourth Proportional to 402,603.22, 555,593.61 and 230,523.81

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Solution

The fourth proportional to 402,603.22, 555,593.61 and 230,523.81 is: 318,123.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,603.22 : 555,593.61 = 230,523.81 : x
  2. Step 2: Convert to fraction form
    402,603.22/555,593.61 = 230,523.81/x
  3. Step 3: Cross multiply
    402,603.22x = 555,593.61 × 230,523.81
  4. Step 4: Simplify right side
    402,603.22x = 128,077,555,788.85
  5. Step 5: Solve for x
    x = 128,077,555,788.85/402,603.22
  6. Step 6: Final answer
    x = 318,123.53

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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.