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Finding the Fourth Proportional to 508,165.35, 701,263.38 and 278,717.94

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Solution

The fourth proportional to 508,165.35, 701,263.38 and 278,717.94 is: 384,628.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,165.35 : 701,263.38 = 278,717.94 : x
  2. Step 2: Convert to fraction form
    508,165.35/701,263.38 = 278,717.94/x
  3. Step 3: Cross multiply
    508,165.35x = 701,263.38 × 278,717.94
  4. Step 4: Simplify right side
    508,165.35x = 195,454,684,671.04
  5. Step 5: Solve for x
    x = 195,454,684,671.04/508,165.35
  6. Step 6: Final answer
    x = 384,628.12

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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.