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Finding the Fourth Proportional to 504,852.41, 696,633.78 and 308,717.46

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Solution

The fourth proportional to 504,852.41, 696,633.78 and 308,717.46 is: 425,991.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,852.41 : 696,633.78 = 308,717.46 : x
  2. Step 2: Convert to fraction form
    504,852.41/696,633.78 = 308,717.46/x
  3. Step 3: Cross multiply
    504,852.41x = 696,633.78 × 308,717.46
  4. Step 4: Simplify right side
    504,852.41x = 215,063,011,111.80
  5. Step 5: Solve for x
    x = 215,063,011,111.80/504,852.41
  6. Step 6: Final answer
    x = 425,991.85

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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.