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Finding the Fourth Proportional to 443,315.30, 663,988.80 and 364,583.30

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Solution

The fourth proportional to 443,315.30, 663,988.80 and 364,583.30 is: 546,065.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,315.30 : 663,988.80 = 364,583.30 : x
  2. Step 2: Convert to fraction form
    443,315.30/663,988.80 = 364,583.30/x
  3. Step 3: Cross multiply
    443,315.30x = 663,988.80 × 364,583.30
  4. Step 4: Simplify right side
    443,315.30x = 242,079,227,867.04
  5. Step 5: Solve for x
    x = 242,079,227,867.04/443,315.30
  6. Step 6: Final answer
    x = 546,065.58

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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.