Home / 816,254.40-1,224,381.60-396,350.40

Finding the Fourth Proportional to 816,254.40, 1,224,381.60 and 396,350.40

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Solution

The fourth proportional to 816,254.40, 1,224,381.60 and 396,350.40 is: 594,525.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,254.40 : 1,224,381.60 = 396,350.40 : x
  2. Step 2: Convert to fraction form
    816,254.40/1,224,381.60 = 396,350.40/x
  3. Step 3: Cross multiply
    816,254.40x = 1,224,381.60 × 396,350.40
  4. Step 4: Simplify right side
    816,254.40x = 485,284,136,912.64
  5. Step 5: Solve for x
    x = 485,284,136,912.64/816,254.40
  6. Step 6: Final answer
    x = 594,525.60

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.