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Finding the Fourth Proportional to 341,399.80, 512,099.70 and 235,111.60

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Solution

The fourth proportional to 341,399.80, 512,099.70 and 235,111.60 is: 352,667.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,399.80 : 512,099.70 = 235,111.60 : x
  2. Step 2: Convert to fraction form
    341,399.80/512,099.70 = 235,111.60/x
  3. Step 3: Cross multiply
    341,399.80x = 512,099.70 × 235,111.60
  4. Step 4: Simplify right side
    341,399.80x = 120,400,579,826.52
  5. Step 5: Solve for x
    x = 120,400,579,826.52/341,399.80
  6. Step 6: Final answer
    x = 352,667.40

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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.