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Finding the Fourth Proportional to 575,374.65, 863,353.50 and 383,380.32

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Solution

The fourth proportional to 575,374.65, 863,353.50 and 383,380.32 is: 575,264.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,374.65 : 863,353.50 = 383,380.32 : x
  2. Step 2: Convert to fraction form
    575,374.65/863,353.50 = 383,380.32/x
  3. Step 3: Cross multiply
    575,374.65x = 863,353.50 × 383,380.32
  4. Step 4: Simplify right side
    575,374.65x = 330,992,741,103.12
  5. Step 5: Solve for x
    x = 330,992,741,103.12/575,374.65
  6. Step 6: Final answer
    x = 575,264.73

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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.