Home / 694,221.18-958,113.95-388,314.56

Finding the Fourth Proportional to 694,221.18, 958,113.95 and 388,314.56

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Solution

The fourth proportional to 694,221.18, 958,113.95 and 388,314.56 is: 535,923.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,221.18 : 958,113.95 = 388,314.56 : x
  2. Step 2: Convert to fraction form
    694,221.18/958,113.95 = 388,314.56/x
  3. Step 3: Cross multiply
    694,221.18x = 958,113.95 × 388,314.56
  4. Step 4: Simplify right side
    694,221.18x = 372,049,595,810.91
  5. Step 5: Solve for x
    x = 372,049,595,810.91/694,221.18
  6. Step 6: Final answer
    x = 535,923.72

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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.