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Finding the Fourth Proportional to 443,176.64, 611,628 and 264,328.64

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Solution

The fourth proportional to 443,176.64, 611,628 and 264,328.64 is: 364,799.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,176.64 : 611,628 = 264,328.64 : x
  2. Step 2: Convert to fraction form
    443,176.64/611,628 = 264,328.64/x
  3. Step 3: Cross multiply
    443,176.64x = 611,628 × 264,328.64
  4. Step 4: Simplify right side
    443,176.64x = 161,670,797,425.92
  5. Step 5: Solve for x
    x = 161,670,797,425.92/443,176.64
  6. Step 6: Final answer
    x = 364,799.91

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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.