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Finding the Fourth Proportional to 289,187.83, 399,022.50 and 181,695.59

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Solution

The fourth proportional to 289,187.83, 399,022.50 and 181,695.59 is: 250,704.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,187.83 : 399,022.50 = 181,695.59 : x
  2. Step 2: Convert to fraction form
    289,187.83/399,022.50 = 181,695.59/x
  3. Step 3: Cross multiply
    289,187.83x = 399,022.50 × 181,695.59
  4. Step 4: Simplify right side
    289,187.83x = 72,500,626,751.88
  5. Step 5: Solve for x
    x = 72,500,626,751.88/289,187.83
  6. Step 6: Final answer
    x = 250,704.28

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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.