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Finding the Fourth Proportional to 922,350, 1,272,843 and 519,942

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Solution

The fourth proportional to 922,350, 1,272,843 and 519,942 is: 717,519.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,350 : 1,272,843 = 519,942 : x
  2. Step 2: Convert to fraction form
    922,350/1,272,843 = 519,942/x
  3. Step 3: Cross multiply
    922,350x = 1,272,843 × 519,942
  4. Step 4: Simplify right side
    922,350x = 661,804,535,106
  5. Step 5: Solve for x
    x = 661,804,535,106/922,350
  6. Step 6: Final answer
    x = 717,519.96

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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.