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Finding the Fourth Proportional to 458,430.71, 632,700.16 and 274,676.54

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Solution

The fourth proportional to 458,430.71, 632,700.16 and 274,676.54 is: 379,093.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,430.71 : 632,700.16 = 274,676.54 : x
  2. Step 2: Convert to fraction form
    458,430.71/632,700.16 = 274,676.54/x
  3. Step 3: Cross multiply
    458,430.71x = 632,700.16 × 274,676.54
  4. Step 4: Simplify right side
    458,430.71x = 173,787,886,956.05
  5. Step 5: Solve for x
    x = 173,787,886,956.05/458,430.71
  6. Step 6: Final answer
    x = 379,093.03

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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.