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Finding the Fourth Proportional to 365,487.20, 548,230.80 and 208,023.20

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Solution

The fourth proportional to 365,487.20, 548,230.80 and 208,023.20 is: 312,034.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,487.20 : 548,230.80 = 208,023.20 : x
  2. Step 2: Convert to fraction form
    365,487.20/548,230.80 = 208,023.20/x
  3. Step 3: Cross multiply
    365,487.20x = 548,230.80 × 208,023.20
  4. Step 4: Simplify right side
    365,487.20x = 114,044,725,354.56
  5. Step 5: Solve for x
    x = 114,044,725,354.56/365,487.20
  6. Step 6: Final answer
    x = 312,034.80

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1.5x scale

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.