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Finding the Fourth Proportional to 325,849.80, 488,774.70 and 266,752.20

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Solution

The fourth proportional to 325,849.80, 488,774.70 and 266,752.20 is: 400,128.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,849.80 : 488,774.70 = 266,752.20 : x
  2. Step 2: Convert to fraction form
    325,849.80/488,774.70 = 266,752.20/x
  3. Step 3: Cross multiply
    325,849.80x = 488,774.70 × 266,752.20
  4. Step 4: Simplify right side
    325,849.80x = 130,381,726,529.34
  5. Step 5: Solve for x
    x = 130,381,726,529.34/325,849.80
  6. Step 6: Final answer
    x = 400,128.30

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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.