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Finding the Fourth Proportional to 478,851.42, 660,819.24 and 263,999.10

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Solution

The fourth proportional to 478,851.42, 660,819.24 and 263,999.10 is: 364,321.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,851.42 : 660,819.24 = 263,999.10 : x
  2. Step 2: Convert to fraction form
    478,851.42/660,819.24 = 263,999.10/x
  3. Step 3: Cross multiply
    478,851.42x = 660,819.24 × 263,999.10
  4. Step 4: Simplify right side
    478,851.42x = 174,455,684,622.68
  5. Step 5: Solve for x
    x = 174,455,684,622.68/478,851.42
  6. Step 6: Final answer
    x = 364,321.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.