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Finding the Fourth Proportional to 547,714.17, 821,614.59 and 192,807.81

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Solution

The fourth proportional to 547,714.17, 821,614.59 and 192,807.81 is: 289,226.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,714.17 : 821,614.59 = 192,807.81 : x
  2. Step 2: Convert to fraction form
    547,714.17/821,614.59 = 192,807.81/x
  3. Step 3: Cross multiply
    547,714.17x = 821,614.59 × 192,807.81
  4. Step 4: Simplify right side
    547,714.17x = 158,413,709,761.95
  5. Step 5: Solve for x
    x = 158,413,709,761.95/547,714.17
  6. Step 6: Final answer
    x = 289,226.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.