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Finding the Fourth Proportional to 504,970.14, 696,873.36 and 278,630.22

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Solution

The fourth proportional to 504,970.14, 696,873.36 and 278,630.22 is: 384,517.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,970.14 : 696,873.36 = 278,630.22 : x
  2. Step 2: Convert to fraction form
    504,970.14/696,873.36 = 278,630.22/x
  3. Step 3: Cross multiply
    504,970.14x = 696,873.36 × 278,630.22
  4. Step 4: Simplify right side
    504,970.14x = 194,169,977,608.94
  5. Step 5: Solve for x
    x = 194,169,977,608.94/504,970.14
  6. Step 6: Final answer
    x = 384,517.74

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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.