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Finding the Fourth Proportional to 476,197.17, 657,164.88 and 261,344.85

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Solution

The fourth proportional to 476,197.17, 657,164.88 and 261,344.85 is: 360,662.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,197.17 : 657,164.88 = 261,344.85 : x
  2. Step 2: Convert to fraction form
    476,197.17/657,164.88 = 261,344.85/x
  3. Step 3: Cross multiply
    476,197.17x = 657,164.88 × 261,344.85
  4. Step 4: Simplify right side
    476,197.17x = 171,746,656,988.87
  5. Step 5: Solve for x
    x = 171,746,656,988.87/476,197.17
  6. Step 6: Final answer
    x = 360,662.91

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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.