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Finding the Fourth Proportional to 341,431.60, 512,147.40 and 181,999.30

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Solution

The fourth proportional to 341,431.60, 512,147.40 and 181,999.30 is: 272,998.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,431.60 : 512,147.40 = 181,999.30 : x
  2. Step 2: Convert to fraction form
    341,431.60/512,147.40 = 181,999.30/x
  3. Step 3: Cross multiply
    341,431.60x = 512,147.40 × 181,999.30
  4. Step 4: Simplify right side
    341,431.60x = 93,210,468,296.82
  5. Step 5: Solve for x
    x = 93,210,468,296.82/341,431.60
  6. Step 6: Final answer
    x = 272,998.95

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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.