Home / 839,715.38-1,259,329.04-327,266.47

Finding the Fourth Proportional to 839,715.38, 1,259,329.04 and 327,266.47

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Solution

The fourth proportional to 839,715.38, 1,259,329.04 and 327,266.47 is: 490,804.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,715.38 : 1,259,329.04 = 327,266.47 : x
  2. Step 2: Convert to fraction form
    839,715.38/1,259,329.04 = 327,266.47/x
  3. Step 3: Cross multiply
    839,715.38x = 1,259,329.04 × 327,266.47
  4. Step 4: Simplify right side
    839,715.38x = 412,136,165,411.52
  5. Step 5: Solve for x
    x = 412,136,165,411.52/839,715.38
  6. Step 6: Final answer
    x = 490,804.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.