Home / 921,942.78-1,272,188.07-514,006.26

Finding the Fourth Proportional to 921,942.78, 1,272,188.07 and 514,006.26

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Solution

The fourth proportional to 921,942.78, 1,272,188.07 and 514,006.26 is: 709,276.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,942.78 : 1,272,188.07 = 514,006.26 : x
  2. Step 2: Convert to fraction form
    921,942.78/1,272,188.07 = 514,006.26/x
  3. Step 3: Cross multiply
    921,942.78x = 1,272,188.07 × 514,006.26
  4. Step 4: Simplify right side
    921,942.78x = 653,912,631,877.32
  5. Step 5: Solve for x
    x = 653,912,631,877.32/921,942.78
  6. Step 6: Final answer
    x = 709,276.81

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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.