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Finding the Fourth Proportional to 618,079.06, 925,872 and 517,958.20

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Solution

The fourth proportional to 618,079.06, 925,872 and 517,958.20 is: 775,892.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,079.06 : 925,872 = 517,958.20 : x
  2. Step 2: Convert to fraction form
    618,079.06/925,872 = 517,958.20/x
  3. Step 3: Cross multiply
    618,079.06x = 925,872 × 517,958.20
  4. Step 4: Simplify right side
    618,079.06x = 479,562,994,550.40
  5. Step 5: Solve for x
    x = 479,562,994,550.40/618,079.06
  6. Step 6: Final answer
    x = 775,892.64

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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.