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Finding the Fourth Proportional to 459,627.84, 634,027.28 and 275,818.80

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Solution

The fourth proportional to 459,627.84, 634,027.28 and 275,818.80 is: 380,474.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,627.84 : 634,027.28 = 275,818.80 : x
  2. Step 2: Convert to fraction form
    459,627.84/634,027.28 = 275,818.80/x
  3. Step 3: Cross multiply
    459,627.84x = 634,027.28 × 275,818.80
  4. Step 4: Simplify right side
    459,627.84x = 174,876,643,536.86
  5. Step 5: Solve for x
    x = 174,876,643,536.86/459,627.84
  6. Step 6: Final answer
    x = 380,474.44

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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.