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Finding the Fourth Proportional to 575,474.40, 863,211.60 and 154,792.80

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Solution

The fourth proportional to 575,474.40, 863,211.60 and 154,792.80 is: 232,189.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,474.40 : 863,211.60 = 154,792.80 : x
  2. Step 2: Convert to fraction form
    575,474.40/863,211.60 = 154,792.80/x
  3. Step 3: Cross multiply
    575,474.40x = 863,211.60 × 154,792.80
  4. Step 4: Simplify right side
    575,474.40x = 133,618,940,556.48
  5. Step 5: Solve for x
    x = 133,618,940,556.48/575,474.40
  6. Step 6: Final answer
    x = 232,189.20

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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.