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Finding the Fourth Proportional to 462,486.80, 693,600.60 and 147,040.40

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Solution

The fourth proportional to 462,486.80, 693,600.60 and 147,040.40 is: 220,519.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,486.80 : 693,600.60 = 147,040.40 : x
  2. Step 2: Convert to fraction form
    462,486.80/693,600.60 = 147,040.40/x
  3. Step 3: Cross multiply
    462,486.80x = 693,600.60 × 147,040.40
  4. Step 4: Simplify right side
    462,486.80x = 101,987,309,664.24
  5. Step 5: Solve for x
    x = 101,987,309,664.24/462,486.80
  6. Step 6: Final answer
    x = 220,519.40

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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.