Home / 816,516.04-1,222,153.50-436,486.44

Finding the Fourth Proportional to 816,516.04, 1,222,153.50 and 436,486.44

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Solution

The fourth proportional to 816,516.04, 1,222,153.50 and 436,486.44 is: 653,328.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,516.04 : 1,222,153.50 = 436,486.44 : x
  2. Step 2: Convert to fraction form
    816,516.04/1,222,153.50 = 436,486.44/x
  3. Step 3: Cross multiply
    816,516.04x = 1,222,153.50 × 436,486.44
  4. Step 4: Simplify right side
    816,516.04x = 533,453,430,348.54
  5. Step 5: Solve for x
    x = 533,453,430,348.54/816,516.04
  6. Step 6: Final answer
    x = 653,328.78

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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.