Home / 807,926.49-1,114,938.27-445,356.41

Finding the Fourth Proportional to 807,926.49, 1,114,938.27 and 445,356.41

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Solution

The fourth proportional to 807,926.49, 1,114,938.27 and 445,356.41 is: 614,591.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,926.49 : 1,114,938.27 = 445,356.41 : x
  2. Step 2: Convert to fraction form
    807,926.49/1,114,938.27 = 445,356.41/x
  3. Step 3: Cross multiply
    807,926.49x = 1,114,938.27 × 445,356.41
  4. Step 4: Simplify right side
    807,926.49x = 496,544,899,724.12
  5. Step 5: Solve for x
    x = 496,544,899,724.12/807,926.49
  6. Step 6: Final answer
    x = 614,591.68

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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.