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Finding the Fourth Proportional to 555,015.84, 832,961.16 and 285,132.96

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Solution

The fourth proportional to 555,015.84, 832,961.16 and 285,132.96 is: 427,924.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,015.84 : 832,961.16 = 285,132.96 : x
  2. Step 2: Convert to fraction form
    555,015.84/832,961.16 = 285,132.96/x
  3. Step 3: Cross multiply
    555,015.84x = 832,961.16 × 285,132.96
  4. Step 4: Simplify right side
    555,015.84x = 237,504,681,115.83
  5. Step 5: Solve for x
    x = 237,504,681,115.83/555,015.84
  6. Step 6: Final answer
    x = 427,924.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.