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Finding the Fourth Proportional to 1,944,382.86, 2,916,491.20 and 665,104.75

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Solution

The fourth proportional to 1,944,382.86, 2,916,491.20 and 665,104.75 is: 997,628.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,944,382.86 : 2,916,491.20 = 665,104.75 : x
  2. Step 2: Convert to fraction form
    1,944,382.86/2,916,491.20 = 665,104.75/x
  3. Step 3: Cross multiply
    1,944,382.86x = 2,916,491.20 × 665,104.75
  4. Step 4: Simplify right side
    1,944,382.86x = 1,939,772,141,499.21
  5. Step 5: Solve for x
    x = 1,939,772,141,499.21/1,944,382.86
  6. Step 6: Final answer
    x = 997,628.70

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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.