Home / 514,439.80-709,906.75-281,862.56

Finding the Fourth Proportional to 514,439.80, 709,906.75 and 281,862.56

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Solution

The fourth proportional to 514,439.80, 709,906.75 and 281,862.56 is: 388,959.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,439.80 : 709,906.75 = 281,862.56 : x
  2. Step 2: Convert to fraction form
    514,439.80/709,906.75 = 281,862.56/x
  3. Step 3: Cross multiply
    514,439.80x = 709,906.75 × 281,862.56
  4. Step 4: Simplify right side
    514,439.80x = 200,096,134,986.39
  5. Step 5: Solve for x
    x = 200,096,134,986.39/514,439.80
  6. Step 6: Final answer
    x = 388,959.28

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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.