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Finding the Fourth Proportional to 426,144.60, 587,900.64 and 298,903.32

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Solution

The fourth proportional to 426,144.60, 587,900.64 and 298,903.32 is: 412,361.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,144.60 : 587,900.64 = 298,903.32 : x
  2. Step 2: Convert to fraction form
    426,144.60/587,900.64 = 298,903.32/x
  3. Step 3: Cross multiply
    426,144.60x = 587,900.64 × 298,903.32
  4. Step 4: Simplify right side
    426,144.60x = 175,725,453,126.13
  5. Step 5: Solve for x
    x = 175,725,453,126.13/426,144.60
  6. Step 6: Final answer
    x = 412,361.09

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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.