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Finding the Fourth Proportional to 503,096.60, 694,663.00 and 386,625.58

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Solution

The fourth proportional to 503,096.60, 694,663.00 and 386,625.58 is: 533,842.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,096.60 : 694,663.00 = 386,625.58 : x
  2. Step 2: Convert to fraction form
    503,096.60/694,663.00 = 386,625.58/x
  3. Step 3: Cross multiply
    503,096.60x = 694,663.00 × 386,625.58
  4. Step 4: Simplify right side
    503,096.60x = 268,574,481,609.76
  5. Step 5: Solve for x
    x = 268,574,481,609.76/503,096.60
  6. Step 6: Final answer
    x = 533,842.77

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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.