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Finding the Fourth Proportional to 476,422.92, 657,455.45 and 261,561.44

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Solution

The fourth proportional to 476,422.92, 657,455.45 and 261,561.44 is: 360,950.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,422.92 : 657,455.45 = 261,561.44 : x
  2. Step 2: Convert to fraction form
    476,422.92/657,455.45 = 261,561.44/x
  3. Step 3: Cross multiply
    476,422.92x = 657,455.45 × 261,561.44
  4. Step 4: Simplify right side
    476,422.92x = 171,964,994,573.68
  5. Step 5: Solve for x
    x = 171,964,994,573.68/476,422.92
  6. Step 6: Final answer
    x = 360,950.30

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1.5x scale

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.