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Finding the Fourth Proportional to 481,291.68, 664,187.77 and 266,435.33

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Solution

The fourth proportional to 481,291.68, 664,187.77 and 266,435.33 is: 367,683.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,291.68 : 664,187.77 = 266,435.33 : x
  2. Step 2: Convert to fraction form
    481,291.68/664,187.77 = 266,435.33/x
  3. Step 3: Cross multiply
    481,291.68x = 664,187.77 × 266,435.33
  4. Step 4: Simplify right side
    481,291.68x = 176,963,087,681.91
  5. Step 5: Solve for x
    x = 176,963,087,681.91/481,291.68
  6. Step 6: Final answer
    x = 367,683.66

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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.