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Finding the Fourth Proportional to 573,065.10, 790,783.56 and 331,363.32

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Solution

The fourth proportional to 573,065.10, 790,783.56 and 331,363.32 is: 457,254.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,065.10 : 790,783.56 = 331,363.32 : x
  2. Step 2: Convert to fraction form
    573,065.10/790,783.56 = 331,363.32/x
  3. Step 3: Cross multiply
    573,065.10x = 790,783.56 × 331,363.32
  4. Step 4: Simplify right side
    573,065.10x = 262,036,665,843.02
  5. Step 5: Solve for x
    x = 262,036,665,843.02/573,065.10
  6. Step 6: Final answer
    x = 457,254.62

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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.