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Finding the Fourth Proportional to 307,574.68, 424,453.40 and 180,250.40

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Solution

The fourth proportional to 307,574.68, 424,453.40 and 180,250.40 is: 248,745.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,574.68 : 424,453.40 = 180,250.40 : x
  2. Step 2: Convert to fraction form
    307,574.68/424,453.40 = 180,250.40/x
  3. Step 3: Cross multiply
    307,574.68x = 424,453.40 × 180,250.40
  4. Step 4: Simplify right side
    307,574.68x = 76,507,895,131.36
  5. Step 5: Solve for x
    x = 76,507,895,131.36/307,574.68
  6. Step 6: Final answer
    x = 248,745.75

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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.