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Finding the Fourth Proportional to 398,773.35, 597,954.83 and 118,254.15

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Solution

The fourth proportional to 398,773.35, 597,954.83 and 118,254.15 is: 177,320.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,773.35 : 597,954.83 = 118,254.15 : x
  2. Step 2: Convert to fraction form
    398,773.35/597,954.83 = 118,254.15/x
  3. Step 3: Cross multiply
    398,773.35x = 597,954.83 × 118,254.15
  4. Step 4: Simplify right side
    398,773.35x = 70,710,639,568.77
  5. Step 5: Solve for x
    x = 70,710,639,568.77/398,773.35
  6. Step 6: Final answer
    x = 177,320.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.