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Finding the Fourth Proportional to 476,169.98, 657,133.51 and 261,317.80

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Solution

The fourth proportional to 476,169.98, 657,133.51 and 261,317.80 is: 360,628.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,169.98 : 657,133.51 = 261,317.80 : x
  2. Step 2: Convert to fraction form
    476,169.98/657,133.51 = 261,317.80/x
  3. Step 3: Cross multiply
    476,169.98x = 657,133.51 × 261,317.80
  4. Step 4: Simplify right side
    476,169.98x = 171,720,679,853.81
  5. Step 5: Solve for x
    x = 171,720,679,853.81/476,169.98
  6. Step 6: Final answer
    x = 360,628.95

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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.