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Finding the Fourth Proportional to 447,076.40, 616,962.62 and 253,520.82

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Solution

The fourth proportional to 447,076.40, 616,962.62 and 253,520.82 is: 349,857.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,076.40 : 616,962.62 = 253,520.82 : x
  2. Step 2: Convert to fraction form
    447,076.40/616,962.62 = 253,520.82/x
  3. Step 3: Cross multiply
    447,076.40x = 616,962.62 × 253,520.82
  4. Step 4: Simplify right side
    447,076.40x = 156,412,869,965.55
  5. Step 5: Solve for x
    x = 156,412,869,965.55/447,076.40
  6. Step 6: Final answer
    x = 349,857.14

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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.