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Finding the Fourth Proportional to 922,907.74, 1,273,100.94 and 540,860.71

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Solution

The fourth proportional to 922,907.74, 1,273,100.94 and 540,860.71 is: 746,087.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,907.74 : 1,273,100.94 = 540,860.71 : x
  2. Step 2: Convert to fraction form
    922,907.74/1,273,100.94 = 540,860.71/x
  3. Step 3: Cross multiply
    922,907.74x = 1,273,100.94 × 540,860.71
  4. Step 4: Simplify right side
    922,907.74x = 688,570,278,310.07
  5. Step 5: Solve for x
    x = 688,570,278,310.07/922,907.74
  6. Step 6: Final answer
    x = 746,087.88

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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.