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Finding the Fourth Proportional to 325,698.40, 488,547.60 and 269,711.20

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Solution

The fourth proportional to 325,698.40, 488,547.60 and 269,711.20 is: 404,566.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,698.40 : 488,547.60 = 269,711.20 : x
  2. Step 2: Convert to fraction form
    325,698.40/488,547.60 = 269,711.20/x
  3. Step 3: Cross multiply
    325,698.40x = 488,547.60 × 269,711.20
  4. Step 4: Simplify right side
    325,698.40x = 131,766,759,453.12
  5. Step 5: Solve for x
    x = 131,766,759,453.12/325,698.40
  6. Step 6: Final answer
    x = 404,566.80

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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.