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Finding the Fourth Proportional to 476,124.21, 657,092.22 and 261,305.80

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Solution

The fourth proportional to 476,124.21, 657,092.22 and 261,305.80 is: 360,624.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,124.21 : 657,092.22 = 261,305.80 : x
  2. Step 2: Convert to fraction form
    476,124.21/657,092.22 = 261,305.80/x
  3. Step 3: Cross multiply
    476,124.21x = 657,092.22 × 261,305.80
  4. Step 4: Simplify right side
    476,124.21x = 171,702,005,598.25
  5. Step 5: Solve for x
    x = 171,702,005,598.25/476,124.21
  6. Step 6: Final answer
    x = 360,624.40

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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.