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Finding the Fourth Proportional to 484,580.16, 726,559.20 and 318,173.76

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Solution

The fourth proportional to 484,580.16, 726,559.20 and 318,173.76 is: 477,056.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,580.16 : 726,559.20 = 318,173.76 : x
  2. Step 2: Convert to fraction form
    484,580.16/726,559.20 = 318,173.76/x
  3. Step 3: Cross multiply
    484,580.16x = 726,559.20 × 318,173.76
  4. Step 4: Simplify right side
    484,580.16x = 231,172,072,526.59
  5. Step 5: Solve for x
    x = 231,172,072,526.59/484,580.16
  6. Step 6: Final answer
    x = 477,056.41

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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.