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Finding the Fourth Proportional to 484,100.66, 668,055.20 and 266,304.64

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Solution

The fourth proportional to 484,100.66, 668,055.20 and 266,304.64 is: 367,498.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,100.66 : 668,055.20 = 266,304.64 : x
  2. Step 2: Convert to fraction form
    484,100.66/668,055.20 = 266,304.64/x
  3. Step 3: Cross multiply
    484,100.66x = 668,055.20 × 266,304.64
  4. Step 4: Simplify right side
    484,100.66x = 177,906,199,536.13
  5. Step 5: Solve for x
    x = 177,906,199,536.13/484,100.66
  6. Step 6: Final answer
    x = 367,498.36

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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.