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Finding the Fourth Proportional to 634,908.96, 876,213.73 and 419,675.76

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Solution

The fourth proportional to 634,908.96, 876,213.73 and 419,675.76 is: 579,178.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,908.96 : 876,213.73 = 419,675.76 : x
  2. Step 2: Convert to fraction form
    634,908.96/876,213.73 = 419,675.76/x
  3. Step 3: Cross multiply
    634,908.96x = 876,213.73 × 419,675.76
  4. Step 4: Simplify right side
    634,908.96x = 367,725,663,060.19
  5. Step 5: Solve for x
    x = 367,725,663,060.19/634,908.96
  6. Step 6: Final answer
    x = 579,178.57

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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.