Home / 1,284,620.20-1,772,646.69-711,553.30

Finding the Fourth Proportional to 1,284,620.20, 1,772,646.69 and 711,553.30

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Solution

The fourth proportional to 1,284,620.20, 1,772,646.69 and 711,553.30 is: 981,872.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,620.20 : 1,772,646.69 = 711,553.30 : x
  2. Step 2: Convert to fraction form
    1,284,620.20/1,772,646.69 = 711,553.30/x
  3. Step 3: Cross multiply
    1,284,620.20x = 1,772,646.69 × 711,553.30
  4. Step 4: Simplify right side
    1,284,620.20x = 1,261,332,600,240.29
  5. Step 5: Solve for x
    x = 1,261,332,600,240.29/1,284,620.20
  6. Step 6: Final answer
    x = 981,872.00

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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.