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Finding the Fourth Proportional to 922,643.64, 1,273,185 and 535,470.30

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Solution

The fourth proportional to 922,643.64, 1,273,185 and 535,470.30 is: 738,912.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,643.64 : 1,273,185 = 535,470.30 : x
  2. Step 2: Convert to fraction form
    922,643.64/1,273,185 = 535,470.30/x
  3. Step 3: Cross multiply
    922,643.64x = 1,273,185 × 535,470.30
  4. Step 4: Simplify right side
    922,643.64x = 681,752,753,905.50
  5. Step 5: Solve for x
    x = 681,752,753,905.50/922,643.64
  6. Step 6: Final answer
    x = 738,912.32

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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.