Home / 813,238.51-1,122,271.76-450,668.33

Finding the Fourth Proportional to 813,238.51, 1,122,271.76 and 450,668.33

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Solution

The fourth proportional to 813,238.51, 1,122,271.76 and 450,668.33 is: 621,923.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,238.51 : 1,122,271.76 = 450,668.33 : x
  2. Step 2: Convert to fraction form
    813,238.51/1,122,271.76 = 450,668.33/x
  3. Step 3: Cross multiply
    813,238.51x = 1,122,271.76 × 450,668.33
  4. Step 4: Simplify right side
    813,238.51x = 505,772,337,632.02
  5. Step 5: Solve for x
    x = 505,772,337,632.02/813,238.51
  6. Step 6: Final answer
    x = 621,923.75

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Double scale
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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.