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Finding the Fourth Proportional to 518,558.70, 776,916.45 and 444,830.70

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Solution

The fourth proportional to 518,558.70, 776,916.45 and 444,830.70 is: 666,455.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,558.70 : 776,916.45 = 444,830.70 : x
  2. Step 2: Convert to fraction form
    518,558.70/776,916.45 = 444,830.70/x
  3. Step 3: Cross multiply
    518,558.70x = 776,916.45 × 444,830.70
  4. Step 4: Simplify right side
    518,558.70x = 345,596,288,295.02
  5. Step 5: Solve for x
    x = 345,596,288,295.02/518,558.70
  6. Step 6: Final answer
    x = 666,455.48

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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.