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Finding the Fourth Proportional to 462,658.80, 693,988.20 and 163,477.20

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Solution

The fourth proportional to 462,658.80, 693,988.20 and 163,477.20 is: 245,215.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,658.80 : 693,988.20 = 163,477.20 : x
  2. Step 2: Convert to fraction form
    462,658.80/693,988.20 = 163,477.20/x
  3. Step 3: Cross multiply
    462,658.80x = 693,988.20 × 163,477.20
  4. Step 4: Simplify right side
    462,658.80x = 113,451,247,769.04
  5. Step 5: Solve for x
    x = 113,451,247,769.04/462,658.80
  6. Step 6: Final answer
    x = 245,215.80

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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.