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Finding the Fourth Proportional to 647,218.27, 970,826.89 and 173,903.63

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Solution

The fourth proportional to 647,218.27, 970,826.89 and 173,903.63 is: 260,855.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,218.27 : 970,826.89 = 173,903.63 : x
  2. Step 2: Convert to fraction form
    647,218.27/970,826.89 = 173,903.63/x
  3. Step 3: Cross multiply
    647,218.27x = 970,826.89 × 173,903.63
  4. Step 4: Simplify right side
    647,218.27x = 168,830,320,431.16
  5. Step 5: Solve for x
    x = 168,830,320,431.16/647,218.27
  6. Step 6: Final answer
    x = 260,855.31

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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.