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Finding the Fourth Proportional to 1,282,531.05, 1,923,795.09 and 514,375.38

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Solution

The fourth proportional to 1,282,531.05, 1,923,795.09 and 514,375.38 is: 771,562.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,531.05 : 1,923,795.09 = 514,375.38 : x
  2. Step 2: Convert to fraction form
    1,282,531.05/1,923,795.09 = 514,375.38/x
  3. Step 3: Cross multiply
    1,282,531.05x = 1,923,795.09 × 514,375.38
  4. Step 4: Simplify right side
    1,282,531.05x = 989,552,830,460.88
  5. Step 5: Solve for x
    x = 989,552,830,460.88/1,282,531.05
  6. Step 6: Final answer
    x = 771,562.47

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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.