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Finding the Fourth Proportional to 375,635.54, 518,284.07 and 222,709.57

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Solution

The fourth proportional to 375,635.54, 518,284.07 and 222,709.57 is: 307,284.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,635.54 : 518,284.07 = 222,709.57 : x
  2. Step 2: Convert to fraction form
    375,635.54/518,284.07 = 222,709.57/x
  3. Step 3: Cross multiply
    375,635.54x = 518,284.07 × 222,709.57
  4. Step 4: Simplify right side
    375,635.54x = 115,426,820,793.45
  5. Step 5: Solve for x
    x = 115,426,820,793.45/375,635.54
  6. Step 6: Final answer
    x = 307,284.08

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1.5x scale

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.