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Finding the Fourth Proportional to 409,212.46, 564,741.59 and 248,074.30

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Solution

The fourth proportional to 409,212.46, 564,741.59 and 248,074.30 is: 342,359.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,212.46 : 564,741.59 = 248,074.30 : x
  2. Step 2: Convert to fraction form
    409,212.46/564,741.59 = 248,074.30/x
  3. Step 3: Cross multiply
    409,212.46x = 564,741.59 × 248,074.30
  4. Step 4: Simplify right side
    409,212.46x = 140,097,871,967.91
  5. Step 5: Solve for x
    x = 140,097,871,967.91/409,212.46
  6. Step 6: Final answer
    x = 342,359.74

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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.