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Finding the Fourth Proportional to 468,845.21, 647,006.69 and 253,986.12

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Solution

The fourth proportional to 468,845.21, 647,006.69 and 253,986.12 is: 350,501.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,845.21 : 647,006.69 = 253,986.12 : x
  2. Step 2: Convert to fraction form
    468,845.21/647,006.69 = 253,986.12/x
  3. Step 3: Cross multiply
    468,845.21x = 647,006.69 × 253,986.12
  4. Step 4: Simplify right side
    468,845.21x = 164,330,717,537.21
  5. Step 5: Solve for x
    x = 164,330,717,537.21/468,845.21
  6. Step 6: Final answer
    x = 350,501.01

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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.