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Finding the Fourth Proportional to 476,068.80, 656,952.96 and 261,203.52

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Solution

The fourth proportional to 476,068.80, 656,952.96 and 261,203.52 is: 360,448.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,068.80 : 656,952.96 = 261,203.52 : x
  2. Step 2: Convert to fraction form
    476,068.80/656,952.96 = 261,203.52/x
  3. Step 3: Cross multiply
    476,068.80x = 656,952.96 × 261,203.52
  4. Step 4: Simplify right side
    476,068.80x = 171,598,425,626.42
  5. Step 5: Solve for x
    x = 171,598,425,626.42/476,068.80
  6. Step 6: Final answer
    x = 360,448.80

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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.