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Finding the Fourth Proportional to 453,722.90, 680,912.40 and 253,831.10

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Solution

The fourth proportional to 453,722.90, 680,912.40 and 253,831.10 is: 380,930.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,722.90 : 680,912.40 = 253,831.10 : x
  2. Step 2: Convert to fraction form
    453,722.90/680,912.40 = 253,831.10/x
  3. Step 3: Cross multiply
    453,722.90x = 680,912.40 × 253,831.10
  4. Step 4: Simplify right side
    453,722.90x = 172,836,743,495.64
  5. Step 5: Solve for x
    x = 172,836,743,495.64/453,722.90
  6. Step 6: Final answer
    x = 380,930.17

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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.