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Finding the Fourth Proportional to 365,430.60, 548,145.90 and 276,857.10

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Solution

The fourth proportional to 365,430.60, 548,145.90 and 276,857.10 is: 415,285.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,430.60 : 548,145.90 = 276,857.10 : x
  2. Step 2: Convert to fraction form
    365,430.60/548,145.90 = 276,857.10/x
  3. Step 3: Cross multiply
    365,430.60x = 548,145.90 × 276,857.10
  4. Step 4: Simplify right side
    365,430.60x = 151,758,084,250.89
  5. Step 5: Solve for x
    x = 151,758,084,250.89/365,430.60
  6. Step 6: Final answer
    x = 415,285.65

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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.