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Finding the Fourth Proportional to 504,015.12, 695,539.40 and 277,660.88

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Solution

The fourth proportional to 504,015.12, 695,539.40 and 277,660.88 is: 383,171.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,015.12 : 695,539.40 = 277,660.88 : x
  2. Step 2: Convert to fraction form
    504,015.12/695,539.40 = 277,660.88/x
  3. Step 3: Cross multiply
    504,015.12x = 695,539.40 × 277,660.88
  4. Step 4: Simplify right side
    504,015.12x = 193,124,081,878.67
  5. Step 5: Solve for x
    x = 193,124,081,878.67/504,015.12
  6. Step 6: Final answer
    x = 383,171.21

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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.