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Finding the Fourth Proportional to 504,997.93, 696,911.76 and 278,658.01

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Solution

The fourth proportional to 504,997.93, 696,911.76 and 278,658.01 is: 384,556.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,997.93 : 696,911.76 = 278,658.01 : x
  2. Step 2: Convert to fraction form
    504,997.93/696,911.76 = 278,658.01/x
  3. Step 3: Cross multiply
    504,997.93x = 696,911.76 × 278,658.01
  4. Step 4: Simplify right side
    504,997.93x = 194,200,044,187.20
  5. Step 5: Solve for x
    x = 194,200,044,187.20/504,997.93
  6. Step 6: Final answer
    x = 384,556.12

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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.