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Finding the Fourth Proportional to 519,335.24, 776,953.56 and 393,339.56

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Solution

The fourth proportional to 519,335.24, 776,953.56 and 393,339.56 is: 588,457.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,335.24 : 776,953.56 = 393,339.56 : x
  2. Step 2: Convert to fraction form
    519,335.24/776,953.56 = 393,339.56/x
  3. Step 3: Cross multiply
    519,335.24x = 776,953.56 × 393,339.56
  4. Step 4: Simplify right side
    519,335.24x = 305,606,571,430.83
  5. Step 5: Solve for x
    x = 305,606,571,430.83/519,335.24
  6. Step 6: Final answer
    x = 588,457.22

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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.