Home / 813,182.45-1,122,227.42-450,605.39

Finding the Fourth Proportional to 813,182.45, 1,122,227.42 and 450,605.39

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Solution

The fourth proportional to 813,182.45, 1,122,227.42 and 450,605.39 is: 621,855.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,182.45 : 1,122,227.42 = 450,605.39 : x
  2. Step 2: Convert to fraction form
    813,182.45/1,122,227.42 = 450,605.39/x
  3. Step 3: Cross multiply
    813,182.45x = 1,122,227.42 × 450,605.39
  4. Step 4: Simplify right side
    813,182.45x = 505,681,716,393.63
  5. Step 5: Solve for x
    x = 505,681,716,393.63/813,182.45
  6. Step 6: Final answer
    x = 621,855.18

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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.