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Finding the Fourth Proportional to 575,640.80, 863,385.60 and 176,321.60

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Solution

The fourth proportional to 575,640.80, 863,385.60 and 176,321.60 is: 264,459.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,640.80 : 863,385.60 = 176,321.60 : x
  2. Step 2: Convert to fraction form
    575,640.80/863,385.60 = 176,321.60/x
  3. Step 3: Cross multiply
    575,640.80x = 863,385.60 × 176,321.60
  4. Step 4: Simplify right side
    575,640.80x = 152,233,530,408.96
  5. Step 5: Solve for x
    x = 152,233,530,408.96/575,640.80
  6. Step 6: Final answer
    x = 264,459.24

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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.