Home / 805,290.40-1,208,081.40-404,923.60

Finding the Fourth Proportional to 805,290.40, 1,208,081.40 and 404,923.60

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Solution

The fourth proportional to 805,290.40, 1,208,081.40 and 404,923.60 is: 607,458.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,290.40 : 1,208,081.40 = 404,923.60 : x
  2. Step 2: Convert to fraction form
    805,290.40/1,208,081.40 = 404,923.60/x
  3. Step 3: Cross multiply
    805,290.40x = 1,208,081.40 × 404,923.60
  4. Step 4: Simplify right side
    805,290.40x = 489,180,669,581.04
  5. Step 5: Solve for x
    x = 489,180,669,581.04/805,290.40
  6. Step 6: Final answer
    x = 607,458.71

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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.