Home / 638,566.20-956,537.10-323,200.80

Finding the Fourth Proportional to 638,566.20, 956,537.10 and 323,200.80

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Solution

The fourth proportional to 638,566.20, 956,537.10 and 323,200.80 is: 484,137.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,566.20 : 956,537.10 = 323,200.80 : x
  2. Step 2: Convert to fraction form
    638,566.20/956,537.10 = 323,200.80/x
  3. Step 3: Cross multiply
    638,566.20x = 956,537.10 × 323,200.80
  4. Step 4: Simplify right side
    638,566.20x = 309,153,555,949.68
  5. Step 5: Solve for x
    x = 309,153,555,949.68/638,566.20
  6. Step 6: Final answer
    x = 484,137.05

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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.