Home / 813,192.36-1,122,173.22-450,631.56

Finding the Fourth Proportional to 813,192.36, 1,122,173.22 and 450,631.56

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Solution

The fourth proportional to 813,192.36, 1,122,173.22 and 450,631.56 is: 621,853.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,192.36 : 1,122,173.22 = 450,631.56 : x
  2. Step 2: Convert to fraction form
    813,192.36/1,122,173.22 = 450,631.56/x
  3. Step 3: Cross multiply
    813,192.36x = 1,122,173.22 × 450,631.56
  4. Step 4: Simplify right side
    813,192.36x = 505,686,668,718.82
  5. Step 5: Solve for x
    x = 505,686,668,718.82/813,192.36
  6. Step 6: Final answer
    x = 621,853.69

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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.