Home / 694,794.12-958,597.40-388,821.89

Finding the Fourth Proportional to 694,794.12, 958,597.40 and 388,821.89

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Solution

The fourth proportional to 694,794.12, 958,597.40 and 388,821.89 is: 536,451.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,794.12 : 958,597.40 = 388,821.89 : x
  2. Step 2: Convert to fraction form
    694,794.12/958,597.40 = 388,821.89/x
  3. Step 3: Cross multiply
    694,794.12x = 958,597.40 × 388,821.89
  4. Step 4: Simplify right side
    694,794.12x = 372,723,646,079.99
  5. Step 5: Solve for x
    x = 372,723,646,079.99/694,794.12
  6. Step 6: Final answer
    x = 536,451.93

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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.