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Finding the Fourth Proportional to 694,354.44, 958,170.58 and 388,371.72

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Solution

The fourth proportional to 694,354.44, 958,170.58 and 388,371.72 is: 535,931.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,354.44 : 958,170.58 = 388,371.72 : x
  2. Step 2: Convert to fraction form
    694,354.44/958,170.58 = 388,371.72/x
  3. Step 3: Cross multiply
    694,354.44x = 958,170.58 × 388,371.72
  4. Step 4: Simplify right side
    694,354.44x = 372,126,356,208.00
  5. Step 5: Solve for x
    x = 372,126,356,208.00/694,354.44
  6. Step 6: Final answer
    x = 535,931.41

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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.