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Finding the Fourth Proportional to 463,169.40, 694,754.10 and 163,987.80

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Solution

The fourth proportional to 463,169.40, 694,754.10 and 163,987.80 is: 245,981.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,169.40 : 694,754.10 = 163,987.80 : x
  2. Step 2: Convert to fraction form
    463,169.40/694,754.10 = 163,987.80/x
  3. Step 3: Cross multiply
    463,169.40x = 694,754.10 × 163,987.80
  4. Step 4: Simplify right side
    463,169.40x = 113,931,196,399.98
  5. Step 5: Solve for x
    x = 113,931,196,399.98/463,169.40
  6. Step 6: Final answer
    x = 245,981.70

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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.