Home / 678,131.59-935,833.46-372,236.57

Finding the Fourth Proportional to 678,131.59, 935,833.46 and 372,236.57

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Solution

The fourth proportional to 678,131.59, 935,833.46 and 372,236.57 is: 513,692.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,131.59 : 935,833.46 = 372,236.57 : x
  2. Step 2: Convert to fraction form
    678,131.59/935,833.46 = 372,236.57/x
  3. Step 3: Cross multiply
    678,131.59x = 935,833.46 × 372,236.57
  4. Step 4: Simplify right side
    678,131.59x = 348,351,437,241.63
  5. Step 5: Solve for x
    x = 348,351,437,241.63/678,131.59
  6. Step 6: Final answer
    x = 513,692.98

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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.