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Finding the Fourth Proportional to 453,996.40, 679,682.40 and 440,874.40

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Solution

The fourth proportional to 453,996.40, 679,682.40 and 440,874.40 is: 660,037.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,996.40 : 679,682.40 = 440,874.40 : x
  2. Step 2: Convert to fraction form
    453,996.40/679,682.40 = 440,874.40/x
  3. Step 3: Cross multiply
    453,996.40x = 679,682.40 × 440,874.40
  4. Step 4: Simplify right side
    453,996.40x = 299,654,570,290.56
  5. Step 5: Solve for x
    x = 299,654,570,290.56/453,996.40
  6. Step 6: Final answer
    x = 660,037.33

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1.5x scale

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.