Home / 1,284,399.91-1,772,530.23-711,440.02

Finding the Fourth Proportional to 1,284,399.91, 1,772,530.23 and 711,440.02

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Solution

The fourth proportional to 1,284,399.91, 1,772,530.23 and 711,440.02 is: 981,819.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,399.91 : 1,772,530.23 = 711,440.02 : x
  2. Step 2: Convert to fraction form
    1,284,399.91/1,772,530.23 = 711,440.02/x
  3. Step 3: Cross multiply
    1,284,399.91x = 1,772,530.23 × 711,440.02
  4. Step 4: Simplify right side
    1,284,399.91x = 1,261,048,942,281.80
  5. Step 5: Solve for x
    x = 1,261,048,942,281.80/1,284,399.91
  6. Step 6: Final answer
    x = 981,819.55

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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.