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Finding the Fourth Proportional to 896,376.06, 1,236,999 and 488,477.76

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Solution

The fourth proportional to 896,376.06, 1,236,999 and 488,477.76 is: 674,099.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,376.06 : 1,236,999 = 488,477.76 : x
  2. Step 2: Convert to fraction form
    896,376.06/1,236,999 = 488,477.76/x
  3. Step 3: Cross multiply
    896,376.06x = 1,236,999 × 488,477.76
  4. Step 4: Simplify right side
    896,376.06x = 604,246,500,642.24
  5. Step 5: Solve for x
    x = 604,246,500,642.24/896,376.06
  6. Step 6: Final answer
    x = 674,099.33

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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.