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Finding the Fourth Proportional to 476,406.33, 657,441.84 and 261,560.22

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Solution

The fourth proportional to 476,406.33, 657,441.84 and 261,560.22 is: 360,953.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,406.33 : 657,441.84 = 261,560.22 : x
  2. Step 2: Convert to fraction form
    476,406.33/657,441.84 = 261,560.22/x
  3. Step 3: Cross multiply
    476,406.33x = 657,441.84 × 261,560.22
  4. Step 4: Simplify right side
    476,406.33x = 171,960,632,307.61
  5. Step 5: Solve for x
    x = 171,960,632,307.61/476,406.33
  6. Step 6: Final answer
    x = 360,953.71

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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.