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Finding the Fourth Proportional to 605,005.20, 835,655.40 and 443,604.60

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Solution

The fourth proportional to 605,005.20, 835,655.40 and 443,604.60 is: 612,722.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,005.20 : 835,655.40 = 443,604.60 : x
  2. Step 2: Convert to fraction form
    605,005.20/835,655.40 = 443,604.60/x
  3. Step 3: Cross multiply
    605,005.20x = 835,655.40 × 443,604.60
  4. Step 4: Simplify right side
    605,005.20x = 370,700,579,454.84
  5. Step 5: Solve for x
    x = 370,700,579,454.84/605,005.20
  6. Step 6: Final answer
    x = 612,722.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.