Home / 694,243.02-958,144.12-388,336.40

Finding the Fourth Proportional to 694,243.02, 958,144.12 and 388,336.40

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Solution

The fourth proportional to 694,243.02, 958,144.12 and 388,336.40 is: 535,953.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,243.02 : 958,144.12 = 388,336.40 : x
  2. Step 2: Convert to fraction form
    694,243.02/958,144.12 = 388,336.40/x
  3. Step 3: Cross multiply
    694,243.02x = 958,144.12 × 388,336.40
  4. Step 4: Simplify right side
    694,243.02x = 372,082,238,241.97
  5. Step 5: Solve for x
    x = 372,082,238,241.97/694,243.02
  6. Step 6: Final answer
    x = 535,953.88

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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.