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Finding the Fourth Proportional to 469,087.49, 703,068.08 and 216,020.61

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Solution

The fourth proportional to 469,087.49, 703,068.08 and 216,020.61 is: 323,771.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,087.49 : 703,068.08 = 216,020.61 : x
  2. Step 2: Convert to fraction form
    469,087.49/703,068.08 = 216,020.61/x
  3. Step 3: Cross multiply
    469,087.49x = 703,068.08 × 216,020.61
  4. Step 4: Simplify right side
    469,087.49x = 151,877,194,433.03
  5. Step 5: Solve for x
    x = 151,877,194,433.03/469,087.49
  6. Step 6: Final answer
    x = 323,771.58

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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.