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Finding the Fourth Proportional to 849,652.60, 1,172,520.92 and 467,676.64

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Solution

The fourth proportional to 849,652.60, 1,172,520.92 and 467,676.64 is: 645,393.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,652.60 : 1,172,520.92 = 467,676.64 : x
  2. Step 2: Convert to fraction form
    849,652.60/1,172,520.92 = 467,676.64/x
  3. Step 3: Cross multiply
    849,652.60x = 1,172,520.92 × 467,676.64
  4. Step 4: Simplify right side
    849,652.60x = 548,360,644,195.31
  5. Step 5: Solve for x
    x = 548,360,644,195.31/849,652.60
  6. Step 6: Final answer
    x = 645,393.95

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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.