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Finding the Fourth Proportional to 456,366.72, 629,958.96 and 408,533.52

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Solution

The fourth proportional to 456,366.72, 629,958.96 and 408,533.52 is: 563,931.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,366.72 : 629,958.96 = 408,533.52 : x
  2. Step 2: Convert to fraction form
    456,366.72/629,958.96 = 408,533.52/x
  3. Step 3: Cross multiply
    456,366.72x = 629,958.96 × 408,533.52
  4. Step 4: Simplify right side
    456,366.72x = 257,359,351,384.34
  5. Step 5: Solve for x
    x = 257,359,351,384.34/456,366.72
  6. Step 6: Final answer
    x = 563,931.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.