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Finding the Fourth Proportional to 376,317.64, 519,279.24 and 212,992.48

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Solution

The fourth proportional to 376,317.64, 519,279.24 and 212,992.48 is: 293,907.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,317.64 : 519,279.24 = 212,992.48 : x
  2. Step 2: Convert to fraction form
    376,317.64/519,279.24 = 212,992.48/x
  3. Step 3: Cross multiply
    376,317.64x = 519,279.24 × 212,992.48
  4. Step 4: Simplify right side
    376,317.64x = 110,602,571,841.92
  5. Step 5: Solve for x
    x = 110,602,571,841.92/376,317.64
  6. Step 6: Final answer
    x = 293,907.49

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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.