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Finding the Fourth Proportional to 446,086.60, 669,129.90 and 410,144.20

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Solution

The fourth proportional to 446,086.60, 669,129.90 and 410,144.20 is: 615,216.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,086.60 : 669,129.90 = 410,144.20 : x
  2. Step 2: Convert to fraction form
    446,086.60/669,129.90 = 410,144.20/x
  3. Step 3: Cross multiply
    446,086.60x = 669,129.90 × 410,144.20
  4. Step 4: Simplify right side
    446,086.60x = 274,439,747,531.58
  5. Step 5: Solve for x
    x = 274,439,747,531.58/446,086.60
  6. Step 6: Final answer
    x = 615,216.30

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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.