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Finding the Fourth Proportional to 465,851.64, 642,871.98 and 264,647.64

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Solution

The fourth proportional to 465,851.64, 642,871.98 and 264,647.64 is: 365,211.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,851.64 : 642,871.98 = 264,647.64 : x
  2. Step 2: Convert to fraction form
    465,851.64/642,871.98 = 264,647.64/x
  3. Step 3: Cross multiply
    465,851.64x = 642,871.98 × 264,647.64
  4. Step 4: Simplify right side
    465,851.64x = 170,134,552,329.13
  5. Step 5: Solve for x
    x = 170,134,552,329.13/465,851.64
  6. Step 6: Final answer
    x = 365,211.88

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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.