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Finding the Fourth Proportional to 896,176, 1,236,726.72 and 493,759.36

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Solution

The fourth proportional to 896,176, 1,236,726.72 and 493,759.36 is: 681,390.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,176 : 1,236,726.72 = 493,759.36 : x
  2. Step 2: Convert to fraction form
    896,176/1,236,726.72 = 493,759.36/x
  3. Step 3: Cross multiply
    896,176x = 1,236,726.72 × 493,759.36
  4. Step 4: Simplify right side
    896,176x = 610,645,393,762.10
  5. Step 5: Solve for x
    x = 610,645,393,762.10/896,176
  6. Step 6: Final answer
    x = 681,390.03

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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.