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Finding the Fourth Proportional to 682,930.64, 942,445.68 and 377,007.42

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Solution

The fourth proportional to 682,930.64, 942,445.68 and 377,007.42 is: 520,271.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,930.64 : 942,445.68 = 377,007.42 : x
  2. Step 2: Convert to fraction form
    682,930.64/942,445.68 = 377,007.42/x
  3. Step 3: Cross multiply
    682,930.64x = 942,445.68 × 377,007.42
  4. Step 4: Simplify right side
    682,930.64x = 355,309,014,306.95
  5. Step 5: Solve for x
    x = 355,309,014,306.95/682,930.64
  6. Step 6: Final answer
    x = 520,271.01

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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.