Home / 434,209.20-651,313.80-411,399.60

Finding the Fourth Proportional to 434,209.20, 651,313.80 and 411,399.60

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Solution

The fourth proportional to 434,209.20, 651,313.80 and 411,399.60 is: 617,099.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,209.20 : 651,313.80 = 411,399.60 : x
  2. Step 2: Convert to fraction form
    434,209.20/651,313.80 = 411,399.60/x
  3. Step 3: Cross multiply
    434,209.20x = 651,313.80 × 411,399.60
  4. Step 4: Simplify right side
    434,209.20x = 267,950,236,794.48
  5. Step 5: Solve for x
    x = 267,950,236,794.48/434,209.20
  6. Step 6: Final answer
    x = 617,099.40

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Similar ratio
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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.