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Finding the Fourth Proportional to 531,231.30, 797,081.62 and 278,451.30

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Solution

The fourth proportional to 531,231.30, 797,081.62 and 278,451.30 is: 417,799.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,231.30 : 797,081.62 = 278,451.30 : x
  2. Step 2: Convert to fraction form
    531,231.30/797,081.62 = 278,451.30/x
  3. Step 3: Cross multiply
    531,231.30x = 797,081.62 × 278,451.30
  4. Step 4: Simplify right side
    531,231.30x = 221,948,413,295.11
  5. Step 5: Solve for x
    x = 221,948,413,295.11/531,231.30
  6. Step 6: Final answer
    x = 417,799.96

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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.