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Finding the Fourth Proportional to 503,996.75, 695,515.21 and 277,642.25

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Solution

The fourth proportional to 503,996.75, 695,515.21 and 277,642.25 is: 383,146.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,996.75 : 695,515.21 = 277,642.25 : x
  2. Step 2: Convert to fraction form
    503,996.75/695,515.21 = 277,642.25/x
  3. Step 3: Cross multiply
    503,996.75x = 695,515.21 × 277,642.25
  4. Step 4: Simplify right side
    503,996.75x = 193,104,408,858.31
  5. Step 5: Solve for x
    x = 193,104,408,858.31/503,996.75
  6. Step 6: Final answer
    x = 383,146.14

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.