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Finding the Fourth Proportional to 307,562.20, 461,343.30 and 228,830.20

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Solution

The fourth proportional to 307,562.20, 461,343.30 and 228,830.20 is: 343,245.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,562.20 : 461,343.30 = 228,830.20 : x
  2. Step 2: Convert to fraction form
    307,562.20/461,343.30 = 228,830.20/x
  3. Step 3: Cross multiply
    307,562.20x = 461,343.30 × 228,830.20
  4. Step 4: Simplify right side
    307,562.20x = 105,569,279,607.66
  5. Step 5: Solve for x
    x = 105,569,279,607.66/307,562.20
  6. Step 6: Final answer
    x = 343,245.30

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1.5x scale

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.