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Finding the Fourth Proportional to 504,454.90, 755,029.78 and 276,402.74

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Solution

The fourth proportional to 504,454.90, 755,029.78 and 276,402.74 is: 413,698.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,454.90 : 755,029.78 = 276,402.74 : x
  2. Step 2: Convert to fraction form
    504,454.90/755,029.78 = 276,402.74/x
  3. Step 3: Cross multiply
    504,454.90x = 755,029.78 × 276,402.74
  4. Step 4: Simplify right side
    504,454.90x = 208,692,299,973.60
  5. Step 5: Solve for x
    x = 208,692,299,973.60/504,454.90
  6. Step 6: Final answer
    x = 413,698.63

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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.