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Finding the Fourth Proportional to 491,189.12, 736,783.69 and 175,626.89

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Solution

The fourth proportional to 491,189.12, 736,783.69 and 175,626.89 is: 263,440.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,189.12 : 736,783.69 = 175,626.89 : x
  2. Step 2: Convert to fraction form
    491,189.12/736,783.69 = 175,626.89/x
  3. Step 3: Cross multiply
    491,189.12x = 736,783.69 × 175,626.89
  4. Step 4: Simplify right side
    491,189.12x = 129,399,029,480.32
  5. Step 5: Solve for x
    x = 129,399,029,480.32/491,189.12
  6. Step 6: Final answer
    x = 263,440.34

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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.