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Finding the Fourth Proportional to 896,078.61, 1,236,574 and 488,185.33

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Solution

The fourth proportional to 896,078.61, 1,236,574 and 488,185.33 is: 673,687.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,078.61 : 1,236,574 = 488,185.33 : x
  2. Step 2: Convert to fraction form
    896,078.61/1,236,574 = 488,185.33/x
  3. Step 3: Cross multiply
    896,078.61x = 1,236,574 × 488,185.33
  4. Step 4: Simplify right side
    896,078.61x = 603,677,286,259.42
  5. Step 5: Solve for x
    x = 603,677,286,259.42/896,078.61
  6. Step 6: Final answer
    x = 673,687.87

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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.