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Finding the Fourth Proportional to 408,045.53, 612,068.29 and 404,108.93

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Solution

The fourth proportional to 408,045.53, 612,068.29 and 404,108.93 is: 606,163.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,045.53 : 612,068.29 = 404,108.93 : x
  2. Step 2: Convert to fraction form
    408,045.53/612,068.29 = 404,108.93/x
  3. Step 3: Cross multiply
    408,045.53x = 612,068.29 × 404,108.93
  4. Step 4: Simplify right side
    408,045.53x = 247,342,257,688.22
  5. Step 5: Solve for x
    x = 247,342,257,688.22/408,045.53
  6. Step 6: Final answer
    x = 606,163.39

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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.