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Finding the Fourth Proportional to 468,539.59, 646,585.05 and 253,679.80

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Solution

The fourth proportional to 468,539.59, 646,585.05 and 253,679.80 is: 350,078.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,539.59 : 646,585.05 = 253,679.80 : x
  2. Step 2: Convert to fraction form
    468,539.59/646,585.05 = 253,679.80/x
  3. Step 3: Cross multiply
    468,539.59x = 646,585.05 × 253,679.80
  4. Step 4: Simplify right side
    468,539.59x = 164,025,566,166.99
  5. Step 5: Solve for x
    x = 164,025,566,166.99/468,539.59
  6. Step 6: Final answer
    x = 350,078.35

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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.