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Finding the Fourth Proportional to 536,626.10, 804,939.15 and 402,781.70

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Solution

The fourth proportional to 536,626.10, 804,939.15 and 402,781.70 is: 604,172.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,626.10 : 804,939.15 = 402,781.70 : x
  2. Step 2: Convert to fraction form
    536,626.10/804,939.15 = 402,781.70/x
  3. Step 3: Cross multiply
    536,626.10x = 804,939.15 × 402,781.70
  4. Step 4: Simplify right side
    536,626.10x = 324,214,759,233.56
  5. Step 5: Solve for x
    x = 324,214,759,233.56/536,626.10
  6. Step 6: Final answer
    x = 604,172.55

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Similar ratio
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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.