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Finding the Fourth Proportional to 476,168.91, 657,091.49 and 261,304.67

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Solution

The fourth proportional to 476,168.91, 657,091.49 and 261,304.67 is: 360,588.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,168.91 : 657,091.49 = 261,304.67 : x
  2. Step 2: Convert to fraction form
    476,168.91/657,091.49 = 261,304.67/x
  3. Step 3: Cross multiply
    476,168.91x = 657,091.49 × 261,304.67
  4. Step 4: Simplify right side
    476,168.91x = 171,701,070,362.28
  5. Step 5: Solve for x
    x = 171,701,070,362.28/476,168.91
  6. Step 6: Final answer
    x = 360,588.58

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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.