Home / 678,174.40-935,527.26-402,371.56

Finding the Fourth Proportional to 678,174.40, 935,527.26 and 402,371.56

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Solution

The fourth proportional to 678,174.40, 935,527.26 and 402,371.56 is: 555,063.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,174.40 : 935,527.26 = 402,371.56 : x
  2. Step 2: Convert to fraction form
    678,174.40/935,527.26 = 402,371.56/x
  3. Step 3: Cross multiply
    678,174.40x = 935,527.26 × 402,371.56
  4. Step 4: Simplify right side
    678,174.40x = 376,429,563,028.73
  5. Step 5: Solve for x
    x = 376,429,563,028.73/678,174.40
  6. Step 6: Final answer
    x = 555,063.07

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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.