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Finding the Fourth Proportional to 365,320.80, 547,981.20 and 239,349.60

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Solution

The fourth proportional to 365,320.80, 547,981.20 and 239,349.60 is: 359,024.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,320.80 : 547,981.20 = 239,349.60 : x
  2. Step 2: Convert to fraction form
    365,320.80/547,981.20 = 239,349.60/x
  3. Step 3: Cross multiply
    365,320.80x = 547,981.20 × 239,349.60
  4. Step 4: Simplify right side
    365,320.80x = 131,159,081,027.52
  5. Step 5: Solve for x
    x = 131,159,081,027.52/365,320.80
  6. Step 6: Final answer
    x = 359,024.40

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Similar ratio
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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.