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Finding the Fourth Proportional to 364,206.56, 499,931.06 and 323,019.90

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Solution

The fourth proportional to 364,206.56, 499,931.06 and 323,019.90 is: 443,395.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,206.56 : 499,931.06 = 323,019.90 : x
  2. Step 2: Convert to fraction form
    364,206.56/499,931.06 = 323,019.90/x
  3. Step 3: Cross multiply
    364,206.56x = 499,931.06 × 323,019.90
  4. Step 4: Simplify right side
    364,206.56x = 161,487,679,393.00
  5. Step 5: Solve for x
    x = 161,487,679,393.00/364,206.56
  6. Step 6: Final answer
    x = 443,395.86

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.