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Finding the Fourth Proportional to 447,042.77, 616,900.25 and 253,463.51

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Solution

The fourth proportional to 447,042.77, 616,900.25 and 253,463.51 is: 349,768.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,042.77 : 616,900.25 = 253,463.51 : x
  2. Step 2: Convert to fraction form
    447,042.77/616,900.25 = 253,463.51/x
  3. Step 3: Cross multiply
    447,042.77x = 616,900.25 × 253,463.51
  4. Step 4: Simplify right side
    447,042.77x = 156,361,700,234.04
  5. Step 5: Solve for x
    x = 156,361,700,234.04/447,042.77
  6. Step 6: Final answer
    x = 349,768.99

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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.