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Finding the Fourth Proportional to 521,040.44, 719,170.98 and 294,817.16

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Solution

The fourth proportional to 521,040.44, 719,170.98 and 294,817.16 is: 406,924.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,040.44 : 719,170.98 = 294,817.16 : x
  2. Step 2: Convert to fraction form
    521,040.44/719,170.98 = 294,817.16/x
  3. Step 3: Cross multiply
    521,040.44x = 719,170.98 × 294,817.16
  4. Step 4: Simplify right side
    521,040.44x = 212,023,945,878.02
  5. Step 5: Solve for x
    x = 212,023,945,878.02/521,040.44
  6. Step 6: Final answer
    x = 406,924.16

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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.