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Finding the Fourth Proportional to 504,898.61, 696,735.79 and 275,442.21

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Solution

The fourth proportional to 504,898.61, 696,735.79 and 275,442.21 is: 380,097.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,898.61 : 696,735.79 = 275,442.21 : x
  2. Step 2: Convert to fraction form
    504,898.61/696,735.79 = 275,442.21/x
  3. Step 3: Cross multiply
    504,898.61x = 696,735.79 × 275,442.21
  4. Step 4: Simplify right side
    504,898.61x = 191,910,446,128.00
  5. Step 5: Solve for x
    x = 191,910,446,128.00/504,898.61
  6. Step 6: Final answer
    x = 380,097.00

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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.