Home / 694,623.33-958,631.67-388,730.34

Finding the Fourth Proportional to 694,623.33, 958,631.67 and 388,730.34

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Solution

The fourth proportional to 694,623.33, 958,631.67 and 388,730.34 is: 536,476.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,623.33 : 958,631.67 = 388,730.34 : x
  2. Step 2: Convert to fraction form
    694,623.33/958,631.67 = 388,730.34/x
  3. Step 3: Cross multiply
    694,623.33x = 958,631.67 × 388,730.34
  4. Step 4: Simplify right side
    694,623.33x = 372,649,215,013.87
  5. Step 5: Solve for x
    x = 372,649,215,013.87/694,623.33
  6. Step 6: Final answer
    x = 536,476.68

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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.