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Finding the Fourth Proportional to 341,430.80, 512,146.20 and 235,142.60

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Solution

The fourth proportional to 341,430.80, 512,146.20 and 235,142.60 is: 352,713.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,430.80 : 512,146.20 = 235,142.60 : x
  2. Step 2: Convert to fraction form
    341,430.80/512,146.20 = 235,142.60/x
  3. Step 3: Cross multiply
    341,430.80x = 512,146.20 × 235,142.60
  4. Step 4: Simplify right side
    341,430.80x = 120,427,389,048.12
  5. Step 5: Solve for x
    x = 120,427,389,048.12/341,430.80
  6. Step 6: Final answer
    x = 352,713.90

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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.