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Finding the Fourth Proportional to 863,721, 1,191,613.68 and 500,941.44

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Solution

The fourth proportional to 863,721, 1,191,613.68 and 500,941.44 is: 691,112.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,721 : 1,191,613.68 = 500,941.44 : x
  2. Step 2: Convert to fraction form
    863,721/1,191,613.68 = 500,941.44/x
  3. Step 3: Cross multiply
    863,721x = 1,191,613.68 × 500,941.44
  4. Step 4: Simplify right side
    863,721x = 596,928,672,782.90
  5. Step 5: Solve for x
    x = 596,928,672,782.90/863,721
  6. Step 6: Final answer
    x = 691,112.84

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1.5x scale

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.