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Finding the Fourth Proportional to 628,037.70, 866,698.38 and 341,564.10

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Solution

The fourth proportional to 628,037.70, 866,698.38 and 341,564.10 is: 471,361.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,037.70 : 866,698.38 = 341,564.10 : x
  2. Step 2: Convert to fraction form
    628,037.70/866,698.38 = 341,564.10/x
  3. Step 3: Cross multiply
    628,037.70x = 866,698.38 × 341,564.10
  4. Step 4: Simplify right side
    628,037.70x = 296,033,052,136.16
  5. Step 5: Solve for x
    x = 296,033,052,136.16/628,037.70
  6. Step 6: Final answer
    x = 471,361.91

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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.