Home / 1,288,919.67-1,934,267.04-447,471.42

Finding the Fourth Proportional to 1,288,919.67, 1,934,267.04 and 447,471.42

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Solution

The fourth proportional to 1,288,919.67, 1,934,267.04 and 447,471.42 is: 671,515.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,919.67 : 1,934,267.04 = 447,471.42 : x
  2. Step 2: Convert to fraction form
    1,288,919.67/1,934,267.04 = 447,471.42/x
  3. Step 3: Cross multiply
    1,288,919.67x = 1,934,267.04 × 447,471.42
  4. Step 4: Simplify right side
    1,288,919.67x = 865,529,219,048.00
  5. Step 5: Solve for x
    x = 865,529,219,048.00/1,288,919.67
  6. Step 6: Final answer
    x = 671,515.25

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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.