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Finding the Fourth Proportional to 373,011.20, 559,516.80 and 322,272.80

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Solution

The fourth proportional to 373,011.20, 559,516.80 and 322,272.80 is: 483,409.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,011.20 : 559,516.80 = 322,272.80 : x
  2. Step 2: Convert to fraction form
    373,011.20/559,516.80 = 322,272.80/x
  3. Step 3: Cross multiply
    373,011.20x = 559,516.80 × 322,272.80
  4. Step 4: Simplify right side
    373,011.20x = 180,317,045,783.04
  5. Step 5: Solve for x
    x = 180,317,045,783.04/373,011.20
  6. Step 6: Final answer
    x = 483,409.20

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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.