Home / 320,986.65-442,923.89-185,019.04

Finding the Fourth Proportional to 320,986.65, 442,923.89 and 185,019.04

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Solution

The fourth proportional to 320,986.65, 442,923.89 and 185,019.04 is: 255,304.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,986.65 : 442,923.89 = 185,019.04 : x
  2. Step 2: Convert to fraction form
    320,986.65/442,923.89 = 185,019.04/x
  3. Step 3: Cross multiply
    320,986.65x = 442,923.89 × 185,019.04
  4. Step 4: Simplify right side
    320,986.65x = 81,949,352,920.87
  5. Step 5: Solve for x
    x = 81,949,352,920.87/320,986.65
  6. Step 6: Final answer
    x = 255,304.55

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1.5x scale

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.