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Finding the Fourth Proportional to 431,386.80, 647,371.80 and 241,846.80

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Solution

The fourth proportional to 431,386.80, 647,371.80 and 241,846.80 is: 362,933.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,386.80 : 647,371.80 = 241,846.80 : x
  2. Step 2: Convert to fraction form
    431,386.80/647,371.80 = 241,846.80/x
  3. Step 3: Cross multiply
    431,386.80x = 647,371.80 × 241,846.80
  4. Step 4: Simplify right side
    431,386.80x = 156,564,798,240.24
  5. Step 5: Solve for x
    x = 156,564,798,240.24/431,386.80
  6. Step 6: Final answer
    x = 362,933.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.