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Finding the Fourth Proportional to 620,697.96, 930,930.35 and 194,169.92

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Solution

The fourth proportional to 620,697.96, 930,930.35 and 194,169.92 is: 291,218.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,697.96 : 930,930.35 = 194,169.92 : x
  2. Step 2: Convert to fraction form
    620,697.96/930,930.35 = 194,169.92/x
  3. Step 3: Cross multiply
    620,697.96x = 930,930.35 × 194,169.92
  4. Step 4: Simplify right side
    620,697.96x = 180,758,665,959.57
  5. Step 5: Solve for x
    x = 180,758,665,959.57/620,697.96
  6. Step 6: Final answer
    x = 291,218.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.