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Finding the Fourth Proportional to 476,197.45, 657,160.49 and 261,357.50

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Solution

The fourth proportional to 476,197.45, 657,160.49 and 261,357.50 is: 360,677.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,197.45 : 657,160.49 = 261,357.50 : x
  2. Step 2: Convert to fraction form
    476,197.45/657,160.49 = 261,357.50/x
  3. Step 3: Cross multiply
    476,197.45x = 657,160.49 × 261,357.50
  4. Step 4: Simplify right side
    476,197.45x = 171,753,825,061.47
  5. Step 5: Solve for x
    x = 171,753,825,061.47/476,197.45
  6. Step 6: Final answer
    x = 360,677.75

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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.