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Finding the Fourth Proportional to 575,166.20, 862,741.20 and 259,622.60

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Solution

The fourth proportional to 575,166.20, 862,741.20 and 259,622.60 is: 389,430.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,166.20 : 862,741.20 = 259,622.60 : x
  2. Step 2: Convert to fraction form
    575,166.20/862,741.20 = 259,622.60/x
  3. Step 3: Cross multiply
    575,166.20x = 862,741.20 × 259,622.60
  4. Step 4: Simplify right side
    575,166.20x = 223,987,113,471.12
  5. Step 5: Solve for x
    x = 223,987,113,471.12/575,166.20
  6. Step 6: Final answer
    x = 389,430.24

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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.