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Finding the Fourth Proportional to 504,159.72, 695,731.38 and 274,719

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Solution

The fourth proportional to 504,159.72, 695,731.38 and 274,719 is: 379,107.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,159.72 : 695,731.38 = 274,719 : x
  2. Step 2: Convert to fraction form
    504,159.72/695,731.38 = 274,719/x
  3. Step 3: Cross multiply
    504,159.72x = 695,731.38 × 274,719
  4. Step 4: Simplify right side
    504,159.72x = 191,130,628,982.22
  5. Step 5: Solve for x
    x = 191,130,628,982.22/504,159.72
  6. Step 6: Final answer
    x = 379,107.30

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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.