Home / 813,161.38-1,122,187.30-450,551.30

Finding the Fourth Proportional to 813,161.38, 1,122,187.30 and 450,551.30

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Solution

The fourth proportional to 813,161.38, 1,122,187.30 and 450,551.30 is: 621,774.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,161.38 : 1,122,187.30 = 450,551.30 : x
  2. Step 2: Convert to fraction form
    813,161.38/1,122,187.30 = 450,551.30/x
  3. Step 3: Cross multiply
    813,161.38x = 1,122,187.30 × 450,551.30
  4. Step 4: Simplify right side
    813,161.38x = 505,602,946,858.49
  5. Step 5: Solve for x
    x = 505,602,946,858.49/813,161.38
  6. Step 6: Final answer
    x = 621,774.42

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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.