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Finding the Fourth Proportional to 577,628.36, 866,073.46 and 277,511.81

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Solution

The fourth proportional to 577,628.36, 866,073.46 and 277,511.81 is: 416,090.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,628.36 : 866,073.46 = 277,511.81 : x
  2. Step 2: Convert to fraction form
    577,628.36/866,073.46 = 277,511.81/x
  3. Step 3: Cross multiply
    577,628.36x = 866,073.46 × 277,511.81
  4. Step 4: Simplify right side
    577,628.36x = 240,345,613,477.56
  5. Step 5: Solve for x
    x = 240,345,613,477.56/577,628.36
  6. Step 6: Final answer
    x = 416,090.40

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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.