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Finding the Fourth Proportional to 468,671.79, 646,763.85 and 253,806.94

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Solution

The fourth proportional to 468,671.79, 646,763.85 and 253,806.94 is: 350,251.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,671.79 : 646,763.85 = 253,806.94 : x
  2. Step 2: Convert to fraction form
    468,671.79/646,763.85 = 253,806.94/x
  3. Step 3: Cross multiply
    468,671.79x = 646,763.85 × 253,806.94
  4. Step 4: Simplify right side
    468,671.79x = 164,153,154,479.57
  5. Step 5: Solve for x
    x = 164,153,154,479.57/468,671.79
  6. Step 6: Final answer
    x = 350,251.83

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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.