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Finding the Fourth Proportional to 575,340.42, 863,017.92 and 220,375.74

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Solution

The fourth proportional to 575,340.42, 863,017.92 and 220,375.74 is: 330,566.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,340.42 : 863,017.92 = 220,375.74 : x
  2. Step 2: Convert to fraction form
    575,340.42/863,017.92 = 220,375.74/x
  3. Step 3: Cross multiply
    575,340.42x = 863,017.92 × 220,375.74
  4. Step 4: Simplify right side
    575,340.42x = 190,188,212,753.26
  5. Step 5: Solve for x
    x = 190,188,212,753.26/575,340.42
  6. Step 6: Final answer
    x = 330,566.40

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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.