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Finding the Fourth Proportional to 439,997.76, 607,196.90 and 238,793.76

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Solution

The fourth proportional to 439,997.76, 607,196.90 and 238,793.76 is: 329,535.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,997.76 : 607,196.90 = 238,793.76 : x
  2. Step 2: Convert to fraction form
    439,997.76/607,196.90 = 238,793.76/x
  3. Step 3: Cross multiply
    439,997.76x = 607,196.90 × 238,793.76
  4. Step 4: Simplify right side
    439,997.76x = 144,994,830,811.34
  5. Step 5: Solve for x
    x = 144,994,830,811.34/439,997.76
  6. Step 6: Final answer
    x = 329,535.38

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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.