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Finding the Fourth Proportional to 417,618.80, 625,045.80 and 323,615.60

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Solution

The fourth proportional to 417,618.80, 625,045.80 and 323,615.60 is: 484,352.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,618.80 : 625,045.80 = 323,615.60 : x
  2. Step 2: Convert to fraction form
    417,618.80/625,045.80 = 323,615.60/x
  3. Step 3: Cross multiply
    417,618.80x = 625,045.80 × 323,615.60
  4. Step 4: Simplify right side
    417,618.80x = 202,274,571,594.48
  5. Step 5: Solve for x
    x = 202,274,571,594.48/417,618.80
  6. Step 6: Final answer
    x = 484,352.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.