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Finding the Fourth Proportional to 439,451.90, 659,210.86 and 186,703.96

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Solution

The fourth proportional to 439,451.90, 659,210.86 and 186,703.96 is: 280,069.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,451.90 : 659,210.86 = 186,703.96 : x
  2. Step 2: Convert to fraction form
    439,451.90/659,210.86 = 186,703.96/x
  3. Step 3: Cross multiply
    439,451.90x = 659,210.86 × 186,703.96
  4. Step 4: Simplify right side
    439,451.90x = 123,077,278,037.01
  5. Step 5: Solve for x
    x = 123,077,278,037.01/439,451.90
  6. Step 6: Final answer
    x = 280,069.96

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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.