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Finding the Fourth Proportional to 504,842.90, 696,685.19 and 275,405.06

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Solution

The fourth proportional to 504,842.90, 696,685.19 and 275,405.06 is: 380,060.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,842.90 : 696,685.19 = 275,405.06 : x
  2. Step 2: Convert to fraction form
    504,842.90/696,685.19 = 275,405.06/x
  3. Step 3: Cross multiply
    504,842.90x = 696,685.19 × 275,405.06
  4. Step 4: Simplify right side
    504,842.90x = 191,870,626,917.75
  5. Step 5: Solve for x
    x = 191,870,626,917.75/504,842.90
  6. Step 6: Final answer
    x = 380,060.07

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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.