Home / 434,229.20-651,343.80-411,419.60

Finding the Fourth Proportional to 434,229.20, 651,343.80 and 411,419.60

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Solution

The fourth proportional to 434,229.20, 651,343.80 and 411,419.60 is: 617,129.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,229.20 : 651,343.80 = 411,419.60 : x
  2. Step 2: Convert to fraction form
    434,229.20/651,343.80 = 411,419.60/x
  3. Step 3: Cross multiply
    434,229.20x = 651,343.80 × 411,419.60
  4. Step 4: Simplify right side
    434,229.20x = 267,975,605,658.48
  5. Step 5: Solve for x
    x = 267,975,605,658.48/434,229.20
  6. Step 6: Final answer
    x = 617,129.40

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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.