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Finding the Fourth Proportional to 365,728.76, 504,807.13 and 212,796.49

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Solution

The fourth proportional to 365,728.76, 504,807.13 and 212,796.49 is: 293,718.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,728.76 : 504,807.13 = 212,796.49 : x
  2. Step 2: Convert to fraction form
    365,728.76/504,807.13 = 212,796.49/x
  3. Step 3: Cross multiply
    365,728.76x = 504,807.13 × 212,796.49
  4. Step 4: Simplify right side
    365,728.76x = 107,421,185,390.97
  5. Step 5: Solve for x
    x = 107,421,185,390.97/365,728.76
  6. Step 6: Final answer
    x = 293,718.18

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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.