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Finding the Fourth Proportional to 468,673.80, 646,766.61 and 253,808.94

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Solution

The fourth proportional to 468,673.80, 646,766.61 and 253,808.94 is: 350,254.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,673.80 : 646,766.61 = 253,808.94 : x
  2. Step 2: Convert to fraction form
    468,673.80/646,766.61 = 253,808.94/x
  3. Step 3: Cross multiply
    468,673.80x = 646,766.61 × 253,808.94
  4. Step 4: Simplify right side
    468,673.80x = 164,155,147,711.49
  5. Step 5: Solve for x
    x = 164,155,147,711.49/468,673.80
  6. Step 6: Final answer
    x = 350,254.59

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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.