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Finding the Fourth Proportional to 341,720.20, 512,577.60 and 89,000.20

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Solution

The fourth proportional to 341,720.20, 512,577.60 and 89,000.20 is: 133,499.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,720.20 : 512,577.60 = 89,000.20 : x
  2. Step 2: Convert to fraction form
    341,720.20/512,577.60 = 89,000.20/x
  3. Step 3: Cross multiply
    341,720.20x = 512,577.60 × 89,000.20
  4. Step 4: Simplify right side
    341,720.20x = 45,619,508,915.52
  5. Step 5: Solve for x
    x = 45,619,508,915.52/341,720.20
  6. Step 6: Final answer
    x = 133,499.60

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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.