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Finding the Fourth Proportional to 476,407.33, 657,443.22 and 261,561.22

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Solution

The fourth proportional to 476,407.33, 657,443.22 and 261,561.22 is: 360,955.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,407.33 : 657,443.22 = 261,561.22 : x
  2. Step 2: Convert to fraction form
    476,407.33/657,443.22 = 261,561.22/x
  3. Step 3: Cross multiply
    476,407.33x = 657,443.22 × 261,561.22
  4. Step 4: Simplify right side
    476,407.33x = 171,961,650,703.93
  5. Step 5: Solve for x
    x = 171,961,650,703.93/476,407.33
  6. Step 6: Final answer
    x = 360,955.09

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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.