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Finding the Fourth Proportional to 365,145.60, 546,489.60 and 254,553.60

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Solution

The fourth proportional to 365,145.60, 546,489.60 and 254,553.60 is: 380,973.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,145.60 : 546,489.60 = 254,553.60 : x
  2. Step 2: Convert to fraction form
    365,145.60/546,489.60 = 254,553.60/x
  3. Step 3: Cross multiply
    365,145.60x = 546,489.60 × 254,553.60
  4. Step 4: Simplify right side
    365,145.60x = 139,110,895,042.56
  5. Step 5: Solve for x
    x = 139,110,895,042.56/365,145.60
  6. Step 6: Final answer
    x = 380,973.77

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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.