Home / 1,405,999.75-2,109,359.27-408,727.75

Finding the Fourth Proportional to 1,405,999.75, 2,109,359.27 and 408,727.75

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Solution

The fourth proportional to 1,405,999.75, 2,109,359.27 and 408,727.75 is: 613,196.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,999.75 : 2,109,359.27 = 408,727.75 : x
  2. Step 2: Convert to fraction form
    1,405,999.75/2,109,359.27 = 408,727.75/x
  3. Step 3: Cross multiply
    1,405,999.75x = 2,109,359.27 × 408,727.75
  4. Step 4: Simplify right side
    1,405,999.75x = 862,153,668,368.74
  5. Step 5: Solve for x
    x = 862,153,668,368.74/1,405,999.75
  6. Step 6: Final answer
    x = 613,196.17

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1.5x scale

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.