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Finding the Fourth Proportional to 307,851.37, 424,722.69 and 180,502.36

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Solution

The fourth proportional to 307,851.37, 424,722.69 and 180,502.36 is: 249,027.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,851.37 : 424,722.69 = 180,502.36 : x
  2. Step 2: Convert to fraction form
    307,851.37/424,722.69 = 180,502.36/x
  3. Step 3: Cross multiply
    307,851.37x = 424,722.69 × 180,502.36
  4. Step 4: Simplify right side
    307,851.37x = 76,663,447,890.55
  5. Step 5: Solve for x
    x = 76,663,447,890.55/307,851.37
  6. Step 6: Final answer
    x = 249,027.47

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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.