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Finding the Fourth Proportional to 318,333.69, 439,362.89 and 182,458.70

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Solution

The fourth proportional to 318,333.69, 439,362.89 and 182,458.70 is: 251,828.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,333.69 : 439,362.89 = 182,458.70 : x
  2. Step 2: Convert to fraction form
    318,333.69/439,362.89 = 182,458.70/x
  3. Step 3: Cross multiply
    318,333.69x = 439,362.89 × 182,458.70
  4. Step 4: Simplify right side
    318,333.69x = 80,165,581,737.64
  5. Step 5: Solve for x
    x = 80,165,581,737.64/318,333.69
  6. Step 6: Final answer
    x = 251,828.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.