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Finding the Fourth Proportional to 478,405.01, 660,236.13 and 263,583.69

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Solution

The fourth proportional to 478,405.01, 660,236.13 and 263,583.69 is: 363,766.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,405.01 : 660,236.13 = 263,583.69 : x
  2. Step 2: Convert to fraction form
    478,405.01/660,236.13 = 263,583.69/x
  3. Step 3: Cross multiply
    478,405.01x = 660,236.13 × 263,583.69
  4. Step 4: Simplify right side
    478,405.01x = 174,027,475,416.72
  5. Step 5: Solve for x
    x = 174,027,475,416.72/478,405.01
  6. Step 6: Final answer
    x = 363,766.00

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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.