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Finding the Fourth Proportional to 409,213.83, 564,743.48 and 248,075.67

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Solution

The fourth proportional to 409,213.83, 564,743.48 and 248,075.67 is: 342,361.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,213.83 : 564,743.48 = 248,075.67 : x
  2. Step 2: Convert to fraction form
    409,213.83/564,743.48 = 248,075.67/x
  3. Step 3: Cross multiply
    409,213.83x = 564,743.48 × 248,075.67
  4. Step 4: Simplify right side
    409,213.83x = 140,099,117,179.13
  5. Step 5: Solve for x
    x = 140,099,117,179.13/409,213.83
  6. Step 6: Final answer
    x = 342,361.64

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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.