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Finding the Fourth Proportional to 611,974.94, 917,306.12 and 295,997.18

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Solution

The fourth proportional to 611,974.94, 917,306.12 and 295,997.18 is: 443,678.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,974.94 : 917,306.12 = 295,997.18 : x
  2. Step 2: Convert to fraction form
    611,974.94/917,306.12 = 295,997.18/x
  3. Step 3: Cross multiply
    611,974.94x = 917,306.12 × 295,997.18
  4. Step 4: Simplify right side
    611,974.94x = 271,520,024,716.74
  5. Step 5: Solve for x
    x = 271,520,024,716.74/611,974.94
  6. Step 6: Final answer
    x = 443,678.34

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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.