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Finding the Fourth Proportional to 708,704.40, 1,063,202.40 and 235,729.20

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Solution

The fourth proportional to 708,704.40, 1,063,202.40 and 235,729.20 is: 353,642.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,704.40 : 1,063,202.40 = 235,729.20 : x
  2. Step 2: Convert to fraction form
    708,704.40/1,063,202.40 = 235,729.20/x
  3. Step 3: Cross multiply
    708,704.40x = 1,063,202.40 × 235,729.20
  4. Step 4: Simplify right side
    708,704.40x = 250,627,851,190.08
  5. Step 5: Solve for x
    x = 250,627,851,190.08/708,704.40
  6. Step 6: Final answer
    x = 353,642.30

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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.