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Finding the Fourth Proportional to 479,206.40, 661,309.44 and 264,355.52

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Solution

The fourth proportional to 479,206.40, 661,309.44 and 264,355.52 is: 364,813.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,206.40 : 661,309.44 = 264,355.52 : x
  2. Step 2: Convert to fraction form
    479,206.40/661,309.44 = 264,355.52/x
  3. Step 3: Cross multiply
    479,206.40x = 661,309.44 × 264,355.52
  4. Step 4: Simplify right side
    479,206.40x = 174,820,800,892.11
  5. Step 5: Solve for x
    x = 174,820,800,892.11/479,206.40
  6. Step 6: Final answer
    x = 364,813.16

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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.