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Finding the Fourth Proportional to 503,519.25, 755,278.74 and 188,000.76

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Solution

The fourth proportional to 503,519.25, 755,278.74 and 188,000.76 is: 282,001.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,519.25 : 755,278.74 = 188,000.76 : x
  2. Step 2: Convert to fraction form
    503,519.25/755,278.74 = 188,000.76/x
  3. Step 3: Cross multiply
    503,519.25x = 755,278.74 × 188,000.76
  4. Step 4: Simplify right side
    503,519.25x = 141,992,977,131.84
  5. Step 5: Solve for x
    x = 141,992,977,131.84/503,519.25
  6. Step 6: Final answer
    x = 282,001.09

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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.