Home / 813,236.75-1,122,269.34-450,666.57

Finding the Fourth Proportional to 813,236.75, 1,122,269.34 and 450,666.57

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Solution

The fourth proportional to 813,236.75, 1,122,269.34 and 450,666.57 is: 621,921.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,236.75 : 1,122,269.34 = 450,666.57 : x
  2. Step 2: Convert to fraction form
    813,236.75/1,122,269.34 = 450,666.57/x
  3. Step 3: Cross multiply
    813,236.75x = 1,122,269.34 × 450,666.57
  4. Step 4: Simplify right side
    813,236.75x = 505,769,274,073.96
  5. Step 5: Solve for x
    x = 505,769,274,073.96/813,236.75
  6. Step 6: Final answer
    x = 621,921.32

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Half scale
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Double scale
Find fourth proportional to 813,237.75, 1,122,270.72 and 450,667.57
Similar ratio
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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.