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Finding the Fourth Proportional to 478,593.45, 660,457.60 and 263,733.46

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Solution

The fourth proportional to 478,593.45, 660,457.60 and 263,733.46 is: 363,951.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,593.45 : 660,457.60 = 263,733.46 : x
  2. Step 2: Convert to fraction form
    478,593.45/660,457.60 = 263,733.46/x
  3. Step 3: Cross multiply
    478,593.45x = 660,457.60 × 263,733.46
  4. Step 4: Simplify right side
    478,593.45x = 174,184,765,720.82
  5. Step 5: Solve for x
    x = 174,184,765,720.82/478,593.45
  6. Step 6: Final answer
    x = 363,951.42

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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.