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Finding the Fourth Proportional to 452,846.20, 679,269.30 and 403,857.40

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Solution

The fourth proportional to 452,846.20, 679,269.30 and 403,857.40 is: 605,786.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,846.20 : 679,269.30 = 403,857.40 : x
  2. Step 2: Convert to fraction form
    452,846.20/679,269.30 = 403,857.40/x
  3. Step 3: Cross multiply
    452,846.20x = 679,269.30 × 403,857.40
  4. Step 4: Simplify right side
    452,846.20x = 274,327,933,397.82
  5. Step 5: Solve for x
    x = 274,327,933,397.82/452,846.20
  6. Step 6: Final answer
    x = 605,786.10

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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.