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Finding the Fourth Proportional to 331,386.54, 457,313.40 and 180,483.54

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Solution

The fourth proportional to 331,386.54, 457,313.40 and 180,483.54 is: 249,067.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,386.54 : 457,313.40 = 180,483.54 : x
  2. Step 2: Convert to fraction form
    331,386.54/457,313.40 = 180,483.54/x
  3. Step 3: Cross multiply
    331,386.54x = 457,313.40 × 180,483.54
  4. Step 4: Simplify right side
    331,386.54x = 82,537,541,321.44
  5. Step 5: Solve for x
    x = 82,537,541,321.44/331,386.54
  6. Step 6: Final answer
    x = 249,067.27

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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.