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Finding the Fourth Proportional to 454,314.84, 626,636.70 and 385,860.12

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Solution

The fourth proportional to 454,314.84, 626,636.70 and 385,860.12 is: 532,217.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,314.84 : 626,636.70 = 385,860.12 : x
  2. Step 2: Convert to fraction form
    454,314.84/626,636.70 = 385,860.12/x
  3. Step 3: Cross multiply
    454,314.84x = 626,636.70 × 385,860.12
  4. Step 4: Simplify right side
    454,314.84x = 241,794,112,258.40
  5. Step 5: Solve for x
    x = 241,794,112,258.40/454,314.84
  6. Step 6: Final answer
    x = 532,217.07

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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.