Home / 939,453.66-1,296,441.72-509,732.73

Finding the Fourth Proportional to 939,453.66, 1,296,441.72 and 509,732.73

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Solution

The fourth proportional to 939,453.66, 1,296,441.72 and 509,732.73 is: 703,428.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,453.66 : 1,296,441.72 = 509,732.73 : x
  2. Step 2: Convert to fraction form
    939,453.66/1,296,441.72 = 509,732.73/x
  3. Step 3: Cross multiply
    939,453.66x = 1,296,441.72 × 509,732.73
  4. Step 4: Simplify right side
    939,453.66x = 660,838,777,221.50
  5. Step 5: Solve for x
    x = 660,838,777,221.50/939,453.66
  6. Step 6: Final answer
    x = 703,428.82

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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.