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Finding the Fourth Proportional to 484,582.16, 726,562.20 and 318,175.76

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Solution

The fourth proportional to 484,582.16, 726,562.20 and 318,175.76 is: 477,059.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,582.16 : 726,562.20 = 318,175.76 : x
  2. Step 2: Convert to fraction form
    484,582.16/726,562.20 = 318,175.76/x
  3. Step 3: Cross multiply
    484,582.16x = 726,562.20 × 318,175.76
  4. Step 4: Simplify right side
    484,582.16x = 231,174,480,172.27
  5. Step 5: Solve for x
    x = 231,174,480,172.27/484,582.16
  6. Step 6: Final answer
    x = 477,059.41

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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.