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Finding the Fourth Proportional to 519,803.28, 717,059.83 and 328,927.39

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Solution

The fourth proportional to 519,803.28, 717,059.83 and 328,927.39 is: 453,749.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,803.28 : 717,059.83 = 328,927.39 : x
  2. Step 2: Convert to fraction form
    519,803.28/717,059.83 = 328,927.39/x
  3. Step 3: Cross multiply
    519,803.28x = 717,059.83 × 328,927.39
  4. Step 4: Simplify right side
    519,803.28x = 235,860,618,355.74
  5. Step 5: Solve for x
    x = 235,860,618,355.74/519,803.28
  6. Step 6: Final answer
    x = 453,749.77

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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.