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Finding the Fourth Proportional to 439,605.60, 659,408.40 and 410,114.40

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Solution

The fourth proportional to 439,605.60, 659,408.40 and 410,114.40 is: 615,171.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,605.60 : 659,408.40 = 410,114.40 : x
  2. Step 2: Convert to fraction form
    439,605.60/659,408.40 = 410,114.40/x
  3. Step 3: Cross multiply
    439,605.60x = 659,408.40 × 410,114.40
  4. Step 4: Simplify right side
    439,605.60x = 270,432,880,320.96
  5. Step 5: Solve for x
    x = 270,432,880,320.96/439,605.60
  6. Step 6: Final answer
    x = 615,171.60

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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.