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Finding the Fourth Proportional to 307,745.46, 424,759.60 and 180,462.06

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Solution

The fourth proportional to 307,745.46, 424,759.60 and 180,462.06 is: 249,079.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,745.46 : 424,759.60 = 180,462.06 : x
  2. Step 2: Convert to fraction form
    307,745.46/424,759.60 = 180,462.06/x
  3. Step 3: Cross multiply
    307,745.46x = 424,759.60 × 180,462.06
  4. Step 4: Simplify right side
    307,745.46x = 76,652,992,420.78
  5. Step 5: Solve for x
    x = 76,652,992,420.78/307,745.46
  6. Step 6: Final answer
    x = 249,079.20

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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.