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Finding the Fourth Proportional to 575,290.79, 863,060.73 and 220,304.82

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Solution

The fourth proportional to 575,290.79, 863,060.73 and 220,304.82 is: 330,504.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,290.79 : 863,060.73 = 220,304.82 : x
  2. Step 2: Convert to fraction form
    575,290.79/863,060.73 = 220,304.82/x
  3. Step 3: Cross multiply
    575,290.79x = 863,060.73 × 220,304.82
  4. Step 4: Simplify right side
    575,290.79x = 190,136,438,771.72
  5. Step 5: Solve for x
    x = 190,136,438,771.72/575,290.79
  6. Step 6: Final answer
    x = 330,504.93

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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.